Home / 90,834,718.86-136,251,266.45-28,590,728.22

Finding the Fourth Proportional to 90,834,718.86, 136,251,266.45 and 28,590,728.22

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Solution

The fourth proportional to 90,834,718.86, 136,251,266.45 and 28,590,728.22 is: 42,885,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,834,718.86 : 136,251,266.45 = 28,590,728.22 : x
  2. Step 2: Convert to fraction form
    90,834,718.86/136,251,266.45 = 28,590,728.22/x
  3. Step 3: Cross multiply
    90,834,718.86x = 136,251,266.45 × 28,590,728.22
  4. Step 4: Simplify right side
    90,834,718.86x = 3,895,522,928,559,800
  5. Step 5: Solve for x
    x = 3,895,522,928,559,800/90,834,718.86
  6. Step 6: Final answer
    x = 42,885,836.80

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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.