Home / 128,460,729.84-177,276,002.02-69,723,416.52

Finding the Fourth Proportional to 128,460,729.84, 177,276,002.02 and 69,723,416.52

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Solution

The fourth proportional to 128,460,729.84, 177,276,002.02 and 69,723,416.52 is: 96,218,420.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,460,729.84 : 177,276,002.02 = 69,723,416.52 : x
  2. Step 2: Convert to fraction form
    128,460,729.84/177,276,002.02 = 69,723,416.52/x
  3. Step 3: Cross multiply
    128,460,729.84x = 177,276,002.02 × 69,723,416.52
  4. Step 4: Simplify right side
    128,460,729.84x = 12,360,288,527,666,514
  5. Step 5: Solve for x
    x = 12,360,288,527,666,514/128,460,729.84
  6. Step 6: Final answer
    x = 96,218,420.55

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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.