Home / 807,765,189.17-1,209,162,681.23-527,041,636.76

Finding the Fourth Proportional to 807,765,189.17, 1,209,162,681.23 and 527,041,636.76

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Solution

The fourth proportional to 807,765,189.17, 1,209,162,681.23 and 527,041,636.76 is: 788,941,003.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,765,189.17 : 1,209,162,681.23 = 527,041,636.76 : x
  2. Step 2: Convert to fraction form
    807,765,189.17/1,209,162,681.23 = 527,041,636.76/x
  3. Step 3: Cross multiply
    807,765,189.17x = 1,209,162,681.23 × 527,041,636.76
  4. Step 4: Simplify right side
    807,765,189.17x = 637,279,078,615,888,256
  5. Step 5: Solve for x
    x = 637,279,078,615,888,256/807,765,189.17
  6. Step 6: Final answer
    x = 788,941,003.11

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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.