Home / 314,928,921.20-472,393,381.80-288,144,294.80

Finding the Fourth Proportional to 314,928,921.20, 472,393,381.80 and 288,144,294.80

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Solution

The fourth proportional to 314,928,921.20, 472,393,381.80 and 288,144,294.80 is: 432,216,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,921.20 : 472,393,381.80 = 288,144,294.80 : x
  2. Step 2: Convert to fraction form
    314,928,921.20/472,393,381.80 = 288,144,294.80/x
  3. Step 3: Cross multiply
    314,928,921.20x = 472,393,381.80 × 288,144,294.80
  4. Step 4: Simplify right side
    314,928,921.20x = 136,117,457,866,948,160
  5. Step 5: Solve for x
    x = 136,117,457,866,948,160/314,928,921.20
  6. Step 6: Final answer
    x = 432,216,442.20

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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.