Home / 314,928,769.20-472,393,153.80-84,921,104.40

Finding the Fourth Proportional to 314,928,769.20, 472,393,153.80 and 84,921,104.40

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Solution

The fourth proportional to 314,928,769.20, 472,393,153.80 and 84,921,104.40 is: 127,381,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,769.20 : 472,393,153.80 = 84,921,104.40 : x
  2. Step 2: Convert to fraction form
    314,928,769.20/472,393,153.80 = 84,921,104.40/x
  3. Step 3: Cross multiply
    314,928,769.20x = 472,393,153.80 × 84,921,104.40
  4. Step 4: Simplify right side
    314,928,769.20x = 40,116,148,331,695,064
  5. Step 5: Solve for x
    x = 40,116,148,331,695,064/314,928,769.20
  6. Step 6: Final answer
    x = 127,381,656.60

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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.