Home / 52,608,010.40-78,912,015.60-38,163,312.80

Finding the Fourth Proportional to 52,608,010.40, 78,912,015.60 and 38,163,312.80

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Solution

The fourth proportional to 52,608,010.40, 78,912,015.60 and 38,163,312.80 is: 57,244,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,608,010.40 : 78,912,015.60 = 38,163,312.80 : x
  2. Step 2: Convert to fraction form
    52,608,010.40/78,912,015.60 = 38,163,312.80/x
  3. Step 3: Cross multiply
    52,608,010.40x = 78,912,015.60 × 38,163,312.80
  4. Step 4: Simplify right side
    52,608,010.40x = 3,011,543,935,021,279
  5. Step 5: Solve for x
    x = 3,011,543,935,021,279/52,608,010.40
  6. Step 6: Final answer
    x = 57,244,969.20

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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.