Home / 772,646,543.10-1,158,969,814.65-465,780,699.90

Finding the Fourth Proportional to 772,646,543.10, 1,158,969,814.65 and 465,780,699.90

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Solution

The fourth proportional to 772,646,543.10, 1,158,969,814.65 and 465,780,699.90 is: 698,671,049.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,646,543.10 : 1,158,969,814.65 = 465,780,699.90 : x
  2. Step 2: Convert to fraction form
    772,646,543.10/1,158,969,814.65 = 465,780,699.90/x
  3. Step 3: Cross multiply
    772,646,543.10x = 1,158,969,814.65 × 465,780,699.90
  4. Step 4: Simplify right side
    772,646,543.10x = 539,825,771,430,650,304
  5. Step 5: Solve for x
    x = 539,825,771,430,650,304/772,646,543.10
  6. Step 6: Final answer
    x = 698,671,049.85

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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.