Home / 387,103,632.90-580,655,449.35-99,889,296.90

Finding the Fourth Proportional to 387,103,632.90, 580,655,449.35 and 99,889,296.90

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Solution

The fourth proportional to 387,103,632.90, 580,655,449.35 and 99,889,296.90 is: 149,833,945.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,103,632.90 : 580,655,449.35 = 99,889,296.90 : x
  2. Step 2: Convert to fraction form
    387,103,632.90/580,655,449.35 = 99,889,296.90/x
  3. Step 3: Cross multiply
    387,103,632.90x = 580,655,449.35 × 99,889,296.90
  4. Step 4: Simplify right side
    387,103,632.90x = 58,001,264,576,725,064
  5. Step 5: Solve for x
    x = 58,001,264,576,725,064/387,103,632.90
  6. Step 6: Final answer
    x = 149,833,945.35

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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.