Home / 20,761,787.70-31,142,681.55-19,566,045.45

Finding the Fourth Proportional to 20,761,787.70, 31,142,681.55 and 19,566,045.45

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Solution

The fourth proportional to 20,761,787.70, 31,142,681.55 and 19,566,045.45 is: 29,349,068.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761,787.70 : 31,142,681.55 = 19,566,045.45 : x
  2. Step 2: Convert to fraction form
    20,761,787.70/31,142,681.55 = 19,566,045.45/x
  3. Step 3: Cross multiply
    20,761,787.70x = 31,142,681.55 × 19,566,045.45
  4. Step 4: Simplify right side
    20,761,787.70x = 609,339,122,642,176.50
  5. Step 5: Solve for x
    x = 609,339,122,642,176.50/20,761,787.70
  6. Step 6: Final answer
    x = 29,349,068.18

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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.