Home / 754,515,945.60-1,129,506,436.80-447,650,102.40

Finding the Fourth Proportional to 754,515,945.60, 1,129,506,436.80 and 447,650,102.40

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Solution

The fourth proportional to 754,515,945.60, 1,129,506,436.80 and 447,650,102.40 is: 670,129,869.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,515,945.60 : 1,129,506,436.80 = 447,650,102.40 : x
  2. Step 2: Convert to fraction form
    754,515,945.60/1,129,506,436.80 = 447,650,102.40/x
  3. Step 3: Cross multiply
    754,515,945.60x = 1,129,506,436.80 × 447,650,102.40
  4. Step 4: Simplify right side
    754,515,945.60x = 505,623,672,094,979,072
  5. Step 5: Solve for x
    x = 505,623,672,094,979,072/754,515,945.60
  6. Step 6: Final answer
    x = 670,129,869.41

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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.