Home / 42,768,000.70-64,152,001.05-38,438,323.90

Finding the Fourth Proportional to 42,768,000.70, 64,152,001.05 and 38,438,323.90

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Solution

The fourth proportional to 42,768,000.70, 64,152,001.05 and 38,438,323.90 is: 57,657,485.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,000.70 : 64,152,001.05 = 38,438,323.90 : x
  2. Step 2: Convert to fraction form
    42,768,000.70/64,152,001.05 = 38,438,323.90/x
  3. Step 3: Cross multiply
    42,768,000.70x = 64,152,001.05 × 38,438,323.90
  4. Step 4: Simplify right side
    42,768,000.70x = 2,465,895,395,193,040
  5. Step 5: Solve for x
    x = 2,465,895,395,193,040/42,768,000.70
  6. Step 6: Final answer
    x = 57,657,485.85

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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.