Home / 105,820,003.20-158,730,004.80-60,386,390.40

Finding the Fourth Proportional to 105,820,003.20, 158,730,004.80 and 60,386,390.40

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Solution

The fourth proportional to 105,820,003.20, 158,730,004.80 and 60,386,390.40 is: 90,579,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,820,003.20 : 158,730,004.80 = 60,386,390.40 : x
  2. Step 2: Convert to fraction form
    105,820,003.20/158,730,004.80 = 60,386,390.40/x
  3. Step 3: Cross multiply
    105,820,003.20x = 158,730,004.80 × 60,386,390.40
  4. Step 4: Simplify right side
    105,820,003.20x = 9,585,132,038,046,674
  5. Step 5: Solve for x
    x = 9,585,132,038,046,674/105,820,003.20
  6. Step 6: Final answer
    x = 90,579,585.60

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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.