Home / 39,718,689.60-59,578,036.80-12,792,345.60

Finding the Fourth Proportional to 39,718,689.60, 59,578,036.80 and 12,792,345.60

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Solution

The fourth proportional to 39,718,689.60, 59,578,036.80 and 12,792,345.60 is: 19,188,519.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,718,689.60 : 59,578,036.80 = 12,792,345.60 : x
  2. Step 2: Convert to fraction form
    39,718,689.60/59,578,036.80 = 12,792,345.60/x
  3. Step 3: Cross multiply
    39,718,689.60x = 59,578,036.80 × 12,792,345.60
  4. Step 4: Simplify right side
    39,718,689.60x = 762,142,836,915,118
  5. Step 5: Solve for x
    x = 762,142,836,915,118/39,718,689.60
  6. Step 6: Final answer
    x = 19,188,519.17

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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.