Home / 18,138,838.71-25,033,365.50-13,547,188.47

Finding the Fourth Proportional to 18,138,838.71, 25,033,365.50 and 13,547,188.47

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Solution

The fourth proportional to 18,138,838.71, 25,033,365.50 and 13,547,188.47 is: 18,696,440.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138,838.71 : 25,033,365.50 = 13,547,188.47 : x
  2. Step 2: Convert to fraction form
    18,138,838.71/25,033,365.50 = 13,547,188.47/x
  3. Step 3: Cross multiply
    18,138,838.71x = 25,033,365.50 × 13,547,188.47
  4. Step 4: Simplify right side
    18,138,838.71x = 339,131,720,466,895.81
  5. Step 5: Solve for x
    x = 339,131,720,466,895.81/18,138,838.71
  6. Step 6: Final answer
    x = 18,696,440.60

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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.