Home / 42,768,000.90-64,152,001.35-31,430,592.90

Finding the Fourth Proportional to 42,768,000.90, 64,152,001.35 and 31,430,592.90

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Solution

The fourth proportional to 42,768,000.90, 64,152,001.35 and 31,430,592.90 is: 47,145,889.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,000.90 : 64,152,001.35 = 31,430,592.90 : x
  2. Step 2: Convert to fraction form
    42,768,000.90/64,152,001.35 = 31,430,592.90/x
  3. Step 3: Cross multiply
    42,768,000.90x = 64,152,001.35 × 31,430,592.90
  4. Step 4: Simplify right side
    42,768,000.90x = 2,016,335,438,152,100.25
  5. Step 5: Solve for x
    x = 2,016,335,438,152,100.25/42,768,000.90
  6. Step 6: Final answer
    x = 47,145,889.35

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Similar ratio
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1.5x scale

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.