Home / 108,658,825.20-162,988,237.80-74,221,448.40

Finding the Fourth Proportional to 108,658,825.20, 162,988,237.80 and 74,221,448.40

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Solution

The fourth proportional to 108,658,825.20, 162,988,237.80 and 74,221,448.40 is: 111,332,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,658,825.20 : 162,988,237.80 = 74,221,448.40 : x
  2. Step 2: Convert to fraction form
    108,658,825.20/162,988,237.80 = 74,221,448.40/x
  3. Step 3: Cross multiply
    108,658,825.20x = 162,988,237.80 × 74,221,448.40
  4. Step 4: Simplify right side
    108,658,825.20x = 12,097,223,081,679,632
  5. Step 5: Solve for x
    x = 12,097,223,081,679,632/108,658,825.20
  6. Step 6: Final answer
    x = 111,332,172.60

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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.