Home / 13,545,057.69-18,692,084.79-7,349,946.86

Finding the Fourth Proportional to 13,545,057.69, 18,692,084.79 and 7,349,946.86

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Solution

The fourth proportional to 13,545,057.69, 18,692,084.79 and 7,349,946.86 is: 10,142,875.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545,057.69 : 18,692,084.79 = 7,349,946.86 : x
  2. Step 2: Convert to fraction form
    13,545,057.69/18,692,084.79 = 7,349,946.86/x
  3. Step 3: Cross multiply
    13,545,057.69x = 18,692,084.79 × 7,349,946.86
  4. Step 4: Simplify right side
    13,545,057.69x = 137,385,829,955,844.47
  5. Step 5: Solve for x
    x = 137,385,829,955,844.47/13,545,057.69
  6. Step 6: Final answer
    x = 10,142,875.22

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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.