Home / 280,716,621.60-421,103,071.80-96,459,830.40

Finding the Fourth Proportional to 280,716,621.60, 421,103,071.80 and 96,459,830.40

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Solution

The fourth proportional to 280,716,621.60, 421,103,071.80 and 96,459,830.40 is: 144,699,414.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,716,621.60 : 421,103,071.80 = 96,459,830.40 : x
  2. Step 2: Convert to fraction form
    280,716,621.60/421,103,071.80 = 96,459,830.40/x
  3. Step 3: Cross multiply
    280,716,621.60x = 421,103,071.80 × 96,459,830.40
  4. Step 4: Simplify right side
    280,716,621.60x = 40,619,530,886,747,024
  5. Step 5: Solve for x
    x = 40,619,530,886,747,024/280,716,621.60
  6. Step 6: Final answer
    x = 144,699,414.86

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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.