Home / 28,807,897,272.87-39,755,368,901.01-15,771,862,458.24

Finding the Fourth Proportional to 28,807,897,272.87, 39,755,368,901.01 and 15,771,862,458.24

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Solution

The fourth proportional to 28,807,897,272.87, 39,755,368,901.01 and 15,771,862,458.24 is: 21,765,427,873.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,807,897,272.87 : 39,755,368,901.01 = 15,771,862,458.24 : x
  2. Step 2: Convert to fraction form
    28,807,897,272.87/39,755,368,901.01 = 15,771,862,458.24/x
  3. Step 3: Cross multiply
    28,807,897,272.87x = 39,755,368,901.01 × 15,771,862,458.24
  4. Step 4: Simplify right side
    28,807,897,272.87x = 627,016,210,283,321,622,528
  5. Step 5: Solve for x
    x = 627,016,210,283,321,622,528/28,807,897,272.87
  6. Step 6: Final answer
    x = 21,765,427,873.62

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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.