Home / 120,877,831.80-181,250,262.90-82,582,587

Finding the Fourth Proportional to 120,877,831.80, 181,250,262.90 and 82,582,587

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Solution

The fourth proportional to 120,877,831.80, 181,250,262.90 and 82,582,587 is: 123,828,458.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,877,831.80 : 181,250,262.90 = 82,582,587 : x
  2. Step 2: Convert to fraction form
    120,877,831.80/181,250,262.90 = 82,582,587/x
  3. Step 3: Cross multiply
    120,877,831.80x = 181,250,262.90 × 82,582,587
  4. Step 4: Simplify right side
    120,877,831.80x = 14,968,115,604,712,122
  5. Step 5: Solve for x
    x = 14,968,115,604,712,122/120,877,831.80
  6. Step 6: Final answer
    x = 123,828,458.72

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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.