Home / 74,762,145.90-112,063,502.70-28,686,211.20

Finding the Fourth Proportional to 74,762,145.90, 112,063,502.70 and 28,686,211.20

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Solution

The fourth proportional to 74,762,145.90, 112,063,502.70 and 28,686,211.20 is: 42,998,729.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,762,145.90 : 112,063,502.70 = 28,686,211.20 : x
  2. Step 2: Convert to fraction form
    74,762,145.90/112,063,502.70 = 28,686,211.20/x
  3. Step 3: Cross multiply
    74,762,145.90x = 112,063,502.70 × 28,686,211.20
  4. Step 4: Simplify right side
    74,762,145.90x = 3,214,677,306,263,970
  5. Step 5: Solve for x
    x = 3,214,677,306,263,970/74,762,145.90
  6. Step 6: Final answer
    x = 42,998,729.74

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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.