Home / 715,962,437.04-989,000,744.76-561,282,400.56

Finding the Fourth Proportional to 715,962,437.04, 989,000,744.76 and 561,282,400.56

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Solution

The fourth proportional to 715,962,437.04, 989,000,744.76 and 561,282,400.56 is: 775,332,173.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,962,437.04 : 989,000,744.76 = 561,282,400.56 : x
  2. Step 2: Convert to fraction form
    715,962,437.04/989,000,744.76 = 561,282,400.56/x
  3. Step 3: Cross multiply
    715,962,437.04x = 989,000,744.76 × 561,282,400.56
  4. Step 4: Simplify right side
    715,962,437.04x = 555,108,712,174,520,576
  5. Step 5: Solve for x
    x = 555,108,712,174,520,576/715,962,437.04
  6. Step 6: Final answer
    x = 775,332,173.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.