Home / 288,626,076.37-432,895,370.68-78,553,132.40

Finding the Fourth Proportional to 288,626,076.37, 432,895,370.68 and 78,553,132.40

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Solution

The fourth proportional to 288,626,076.37, 432,895,370.68 and 78,553,132.40 is: 117,817,793.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,626,076.37 : 432,895,370.68 = 78,553,132.40 : x
  2. Step 2: Convert to fraction form
    288,626,076.37/432,895,370.68 = 78,553,132.40/x
  3. Step 3: Cross multiply
    288,626,076.37x = 432,895,370.68 × 78,553,132.40
  4. Step 4: Simplify right side
    288,626,076.37x = 34,005,287,366,208,640
  5. Step 5: Solve for x
    x = 34,005,287,366,208,640/288,626,076.37
  6. Step 6: Final answer
    x = 117,817,793.16

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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.