Home / 1,119,754,403.60-1,679,631,605.40-343,519,869.20

Finding the Fourth Proportional to 1,119,754,403.60, 1,679,631,605.40 and 343,519,869.20

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Solution

The fourth proportional to 1,119,754,403.60, 1,679,631,605.40 and 343,519,869.20 is: 515,279,803.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,754,403.60 : 1,679,631,605.40 = 343,519,869.20 : x
  2. Step 2: Convert to fraction form
    1,119,754,403.60/1,679,631,605.40 = 343,519,869.20/x
  3. Step 3: Cross multiply
    1,119,754,403.60x = 1,679,631,605.40 × 343,519,869.20
  4. Step 4: Simplify right side
    1,119,754,403.60x = 576,986,829,391,193,984
  5. Step 5: Solve for x
    x = 576,986,829,391,193,984/1,119,754,403.60
  6. Step 6: Final answer
    x = 515,279,803.80

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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.