Home / 782,406,013.80-1,173,609,020.70-506,906,999.40

Finding the Fourth Proportional to 782,406,013.80, 1,173,609,020.70 and 506,906,999.40

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Solution

The fourth proportional to 782,406,013.80, 1,173,609,020.70 and 506,906,999.40 is: 760,360,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,406,013.80 : 1,173,609,020.70 = 506,906,999.40 : x
  2. Step 2: Convert to fraction form
    782,406,013.80/1,173,609,020.70 = 506,906,999.40/x
  3. Step 3: Cross multiply
    782,406,013.80x = 1,173,609,020.70 × 506,906,999.40
  4. Step 4: Simplify right side
    782,406,013.80x = 594,910,627,151,809,536
  5. Step 5: Solve for x
    x = 594,910,627,151,809,536/782,406,013.80
  6. Step 6: Final answer
    x = 760,360,499.10

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1.5x scale

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.