Home / 72,248,278.32-99,703,353.60-39,208,812.48

Finding the Fourth Proportional to 72,248,278.32, 99,703,353.60 and 39,208,812.48

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Solution

The fourth proportional to 72,248,278.32, 99,703,353.60 and 39,208,812.48 is: 54,108,557.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,248,278.32 : 99,703,353.60 = 39,208,812.48 : x
  2. Step 2: Convert to fraction form
    72,248,278.32/99,703,353.60 = 39,208,812.48/x
  3. Step 3: Cross multiply
    72,248,278.32x = 99,703,353.60 × 39,208,812.48
  4. Step 4: Simplify right side
    72,248,278.32x = 3,909,250,094,929,532.50
  5. Step 5: Solve for x
    x = 3,909,250,094,929,532.50/72,248,278.32
  6. Step 6: Final answer
    x = 54,108,557.13

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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.