Home / 98,323,242.40-147,148,940.40-86,230,007.20

Finding the Fourth Proportional to 98,323,242.40, 147,148,940.40 and 86,230,007.20

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Solution

The fourth proportional to 98,323,242.40, 147,148,940.40 and 86,230,007.20 is: 129,050,404.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,323,242.40 : 147,148,940.40 = 86,230,007.20 : x
  2. Step 2: Convert to fraction form
    98,323,242.40/147,148,940.40 = 86,230,007.20/x
  3. Step 3: Cross multiply
    98,323,242.40x = 147,148,940.40 × 86,230,007.20
  4. Step 4: Simplify right side
    98,323,242.40x = 12,688,654,190,164,372
  5. Step 5: Solve for x
    x = 12,688,654,190,164,372/98,323,242.40
  6. Step 6: Final answer
    x = 129,050,404.36

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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.