Home / 155,232,021.40-232,815,372.90-78,482,901.40

Finding the Fourth Proportional to 155,232,021.40, 232,815,372.90 and 78,482,901.40

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Solution

The fourth proportional to 155,232,021.40, 232,815,372.90 and 78,482,901.40 is: 117,707,840.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,232,021.40 : 232,815,372.90 = 78,482,901.40 : x
  2. Step 2: Convert to fraction form
    155,232,021.40/232,815,372.90 = 78,482,901.40/x
  3. Step 3: Cross multiply
    155,232,021.40x = 232,815,372.90 × 78,482,901.40
  4. Step 4: Simplify right side
    155,232,021.40x = 18,272,025,955,714,932
  5. Step 5: Solve for x
    x = 18,272,025,955,714,932/155,232,021.40
  6. Step 6: Final answer
    x = 117,707,840.12

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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.