Home / 315,218,420.40-472,429,499.40-153,311,732.40

Finding the Fourth Proportional to 315,218,420.40, 472,429,499.40 and 153,311,732.40

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Solution

The fourth proportional to 315,218,420.40, 472,429,499.40 and 153,311,732.40 is: 229,773,960.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,218,420.40 : 472,429,499.40 = 153,311,732.40 : x
  2. Step 2: Convert to fraction form
    315,218,420.40/472,429,499.40 = 153,311,732.40/x
  3. Step 3: Cross multiply
    315,218,420.40x = 472,429,499.40 × 153,311,732.40
  4. Step 4: Simplify right side
    315,218,420.40x = 72,428,984,989,878,752
  5. Step 5: Solve for x
    x = 72,428,984,989,878,752/315,218,420.40
  6. Step 6: Final answer
    x = 229,773,960.86

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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.