Home / 52,112,006.80-78,168,010.20-38,507,117.20

Finding the Fourth Proportional to 52,112,006.80, 78,168,010.20 and 38,507,117.20

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Solution

The fourth proportional to 52,112,006.80, 78,168,010.20 and 38,507,117.20 is: 57,760,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,112,006.80 : 78,168,010.20 = 38,507,117.20 : x
  2. Step 2: Convert to fraction form
    52,112,006.80/78,168,010.20 = 38,507,117.20/x
  3. Step 3: Cross multiply
    52,112,006.80x = 78,168,010.20 × 38,507,117.20
  4. Step 4: Simplify right side
    52,112,006.80x = 3,010,024,730,062,196
  5. Step 5: Solve for x
    x = 3,010,024,730,062,196/52,112,006.80
  6. Step 6: Final answer
    x = 57,760,675.80

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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.