Home / 57,131,373.23-78,865,419.74-38,571,643.70

Finding the Fourth Proportional to 57,131,373.23, 78,865,419.74 and 38,571,643.70

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Solution

The fourth proportional to 57,131,373.23, 78,865,419.74 and 38,571,643.70 is: 53,245,155.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,131,373.23 : 78,865,419.74 = 38,571,643.70 : x
  2. Step 2: Convert to fraction form
    57,131,373.23/78,865,419.74 = 38,571,643.70/x
  3. Step 3: Cross multiply
    57,131,373.23x = 78,865,419.74 × 38,571,643.70
  4. Step 4: Simplify right side
    57,131,373.23x = 3,041,968,869,875,041.50
  5. Step 5: Solve for x
    x = 3,041,968,869,875,041.50/57,131,373.23
  6. Step 6: Final answer
    x = 53,245,155.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.