Home / 147,020,007.90-220,194,088.65-86,553,831.90

Finding the Fourth Proportional to 147,020,007.90, 220,194,088.65 and 86,553,831.90

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Solution

The fourth proportional to 147,020,007.90, 220,194,088.65 and 86,553,831.90 is: 129,632,982.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,020,007.90 : 220,194,088.65 = 86,553,831.90 : x
  2. Step 2: Convert to fraction form
    147,020,007.90/220,194,088.65 = 86,553,831.90/x
  3. Step 3: Cross multiply
    147,020,007.90x = 220,194,088.65 × 86,553,831.90
  4. Step 4: Simplify right side
    147,020,007.90x = 19,058,642,134,385,800
  5. Step 5: Solve for x
    x = 19,058,642,134,385,800/147,020,007.90
  6. Step 6: Final answer
    x = 129,632,982.66

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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.