Home / 145,407,314.20-217,925,729.70-77,282,642.20

Finding the Fourth Proportional to 145,407,314.20, 217,925,729.70 and 77,282,642.20

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Solution

The fourth proportional to 145,407,314.20, 217,925,729.70 and 77,282,642.20 is: 115,825,509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,407,314.20 : 217,925,729.70 = 77,282,642.20 : x
  2. Step 2: Convert to fraction form
    145,407,314.20/217,925,729.70 = 77,282,642.20/x
  3. Step 3: Cross multiply
    145,407,314.20x = 217,925,729.70 × 77,282,642.20
  4. Step 4: Simplify right side
    145,407,314.20x = 16,841,876,194,579,014
  5. Step 5: Solve for x
    x = 16,841,876,194,579,014/145,407,314.20
  6. Step 6: Final answer
    x = 115,825,509.10

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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.