Home / 145,485,646.92-218,292,396.93-76,382,393.40

Finding the Fourth Proportional to 145,485,646.92, 218,292,396.93 and 76,382,393.40

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Solution

The fourth proportional to 145,485,646.92, 218,292,396.93 and 76,382,393.40 is: 114,607,152.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,485,646.92 : 218,292,396.93 = 76,382,393.40 : x
  2. Step 2: Convert to fraction form
    145,485,646.92/218,292,396.93 = 76,382,393.40/x
  3. Step 3: Cross multiply
    145,485,646.92x = 218,292,396.93 × 76,382,393.40
  4. Step 4: Simplify right side
    145,485,646.92x = 16,673,695,738,536,214
  5. Step 5: Solve for x
    x = 16,673,695,738,536,214/145,485,646.92
  6. Step 6: Final answer
    x = 114,607,152.61

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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.