Home / 392,579,800.72-541,781,430.12-225,314,724.70

Finding the Fourth Proportional to 392,579,800.72, 541,781,430.12 and 225,314,724.70

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Solution

The fourth proportional to 392,579,800.72, 541,781,430.12 and 225,314,724.70 is: 310,946,547.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,579,800.72 : 541,781,430.12 = 225,314,724.70 : x
  2. Step 2: Convert to fraction form
    392,579,800.72/541,781,430.12 = 225,314,724.70/x
  3. Step 3: Cross multiply
    392,579,800.72x = 541,781,430.12 × 225,314,724.70
  4. Step 4: Simplify right side
    392,579,800.72x = 122,071,333,775,060,080
  5. Step 5: Solve for x
    x = 122,071,333,775,060,080/392,579,800.72
  6. Step 6: Final answer
    x = 310,946,547.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.