Home / 28,808,851.68-39,755,656.62-15,756,070.20

Finding the Fourth Proportional to 28,808,851.68, 39,755,656.62 and 15,756,070.20

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Solution

The fourth proportional to 28,808,851.68, 39,755,656.62 and 15,756,070.20 is: 21,743,071.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808,851.68 : 39,755,656.62 = 15,756,070.20 : x
  2. Step 2: Convert to fraction form
    28,808,851.68/39,755,656.62 = 15,756,070.20/x
  3. Step 3: Cross multiply
    28,808,851.68x = 39,755,656.62 × 15,756,070.20
  4. Step 4: Simplify right side
    28,808,851.68x = 626,392,916,551,814.62
  5. Step 5: Solve for x
    x = 626,392,916,551,814.62/28,808,851.68
  6. Step 6: Final answer
    x = 21,743,071.31

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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.