Home / 560,499,687.40-840,829,883.10-172,355,117.80

Finding the Fourth Proportional to 560,499,687.40, 840,829,883.10 and 172,355,117.80

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Solution

The fourth proportional to 560,499,687.40, 840,829,883.10 and 172,355,117.80 is: 258,557,385.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,499,687.40 : 840,829,883.10 = 172,355,117.80 : x
  2. Step 2: Convert to fraction form
    560,499,687.40/840,829,883.10 = 172,355,117.80/x
  3. Step 3: Cross multiply
    560,499,687.40x = 840,829,883.10 × 172,355,117.80
  4. Step 4: Simplify right side
    560,499,687.40x = 144,921,333,551,460,736
  5. Step 5: Solve for x
    x = 144,921,333,551,460,736/560,499,687.40
  6. Step 6: Final answer
    x = 258,557,385.15

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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.