Home / 442,829,005.23-663,986,524.02-209,657,759.65

Finding the Fourth Proportional to 442,829,005.23, 663,986,524.02 and 209,657,759.65

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Solution

The fourth proportional to 442,829,005.23, 663,986,524.02 and 209,657,759.65 is: 314,364,970.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,829,005.23 : 663,986,524.02 = 209,657,759.65 : x
  2. Step 2: Convert to fraction form
    442,829,005.23/663,986,524.02 = 209,657,759.65/x
  3. Step 3: Cross multiply
    442,829,005.23x = 663,986,524.02 × 209,657,759.65
  4. Step 4: Simplify right side
    442,829,005.23x = 139,209,927,063,824,112
  5. Step 5: Solve for x
    x = 139,209,927,063,824,112/442,829,005.23
  6. Step 6: Final answer
    x = 314,364,970.27

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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.