Home / 421,539,329.02-581,785,122.54-242,889,001.62

Finding the Fourth Proportional to 421,539,329.02, 581,785,122.54 and 242,889,001.62

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Solution

The fourth proportional to 421,539,329.02, 581,785,122.54 and 242,889,001.62 is: 335,221,882.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,539,329.02 : 581,785,122.54 = 242,889,001.62 : x
  2. Step 2: Convert to fraction form
    421,539,329.02/581,785,122.54 = 242,889,001.62/x
  3. Step 3: Cross multiply
    421,539,329.02x = 581,785,122.54 × 242,889,001.62
  4. Step 4: Simplify right side
    421,539,329.02x = 141,309,207,571,109,952
  5. Step 5: Solve for x
    x = 141,309,207,571,109,952/421,539,329.02
  6. Step 6: Final answer
    x = 335,221,882.85

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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.