Home / 1,113,962,172.15-1,537,309,284.80-667,998,142.59

Finding the Fourth Proportional to 1,113,962,172.15, 1,537,309,284.80 and 667,998,142.59

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Solution

The fourth proportional to 1,113,962,172.15, 1,537,309,284.80 and 667,998,142.59 is: 921,862,314.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,962,172.15 : 1,537,309,284.80 = 667,998,142.59 : x
  2. Step 2: Convert to fraction form
    1,113,962,172.15/1,537,309,284.80 = 667,998,142.59/x
  3. Step 3: Cross multiply
    1,113,962,172.15x = 1,537,309,284.80 × 667,998,142.59
  4. Step 4: Simplify right side
    1,113,962,172.15x = 1,026,919,746,829,421,440
  5. Step 5: Solve for x
    x = 1,026,919,746,829,421,440/1,113,962,172.15
  6. Step 6: Final answer
    x = 921,862,314.99

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.