Home / 708,388,115.12-977,889,065.44-457,614,780.80

Finding the Fourth Proportional to 708,388,115.12, 977,889,065.44 and 457,614,780.80

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Solution

The fourth proportional to 708,388,115.12, 977,889,065.44 and 457,614,780.80 is: 631,710,895.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,388,115.12 : 977,889,065.44 = 457,614,780.80 : x
  2. Step 2: Convert to fraction form
    708,388,115.12/977,889,065.44 = 457,614,780.80/x
  3. Step 3: Cross multiply
    708,388,115.12x = 977,889,065.44 × 457,614,780.80
  4. Step 4: Simplify right side
    708,388,115.12x = 447,496,490,328,042,496
  5. Step 5: Solve for x
    x = 447,496,490,328,042,496/708,388,115.12
  6. Step 6: Final answer
    x = 631,710,895.17

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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.