Home / 6,440,689,125.60-9,661,033,688.40-5,665,210,418.40

Finding the Fourth Proportional to 6,440,689,125.60, 9,661,033,688.40 and 5,665,210,418.40

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Solution

The fourth proportional to 6,440,689,125.60, 9,661,033,688.40 and 5,665,210,418.40 is: 8,497,815,627.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440,689,125.60 : 9,661,033,688.40 = 5,665,210,418.40 : x
  2. Step 2: Convert to fraction form
    6,440,689,125.60/9,661,033,688.40 = 5,665,210,418.40/x
  3. Step 3: Cross multiply
    6,440,689,125.60x = 9,661,033,688.40 × 5,665,210,418.40
  4. Step 4: Simplify right side
    6,440,689,125.60x = 54,731,788,704,037,052,416
  5. Step 5: Solve for x
    x = 54,731,788,704,037,052,416/6,440,689,125.60
  6. Step 6: Final answer
    x = 8,497,815,627.60

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Double scale
Find fourth proportional to 6,440,689,126.60, 9,661,033,689.90 and 5,665,210,419.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.