Home / 15,268,298,495.31-21,070,442,547.66-8,402,485,039.65

Finding the Fourth Proportional to 15,268,298,495.31, 21,070,442,547.66 and 8,402,485,039.65

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Solution

The fourth proportional to 15,268,298,495.31, 21,070,442,547.66 and 8,402,485,039.65 is: 11,595,534,259.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,268,298,495.31 : 21,070,442,547.66 = 8,402,485,039.65 : x
  2. Step 2: Convert to fraction form
    15,268,298,495.31/21,070,442,547.66 = 8,402,485,039.65/x
  3. Step 3: Cross multiply
    15,268,298,495.31x = 21,070,442,547.66 × 8,402,485,039.65
  4. Step 4: Simplify right side
    15,268,298,495.31x = 177,044,078,285,517,979,648
  5. Step 5: Solve for x
    x = 177,044,078,285,517,979,648/15,268,298,495.31
  6. Step 6: Final answer
    x = 11,595,534,259.43

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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.