Home / 103,352,025.40-155,258,985.30-86,345,913.40

Finding the Fourth Proportional to 103,352,025.40, 155,258,985.30 and 86,345,913.40

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Solution

The fourth proportional to 103,352,025.40, 155,258,985.30 and 86,345,913.40 is: 129,711,815.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,352,025.40 : 155,258,985.30 = 86,345,913.40 : x
  2. Step 2: Convert to fraction form
    103,352,025.40/155,258,985.30 = 86,345,913.40/x
  3. Step 3: Cross multiply
    103,352,025.40x = 155,258,985.30 × 86,345,913.40
  4. Step 4: Simplify right side
    103,352,025.40x = 13,405,978,899,285,674
  5. Step 5: Solve for x
    x = 13,405,978,899,285,674/103,352,025.40
  6. Step 6: Final answer
    x = 129,711,815.97

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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.