Home / 57,126,592.76-78,834,412.50-31,020,878.12

Finding the Fourth Proportional to 57,126,592.76, 78,834,412.50 and 31,020,878.12

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Solution

The fourth proportional to 57,126,592.76, 78,834,412.50 and 31,020,878.12 is: 42,808,656.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,126,592.76 : 78,834,412.50 = 31,020,878.12 : x
  2. Step 2: Convert to fraction form
    57,126,592.76/78,834,412.50 = 31,020,878.12/x
  3. Step 3: Cross multiply
    57,126,592.76x = 78,834,412.50 × 31,020,878.12
  4. Step 4: Simplify right side
    57,126,592.76x = 2,445,512,701,824,304.50
  5. Step 5: Solve for x
    x = 2,445,512,701,824,304.50/57,126,592.76
  6. Step 6: Final answer
    x = 42,808,656.77

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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.