Home / 869,041,139.54-1,199,240,280.54-492,723,049.91

Finding the Fourth Proportional to 869,041,139.54, 1,199,240,280.54 and 492,723,049.91

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Solution

The fourth proportional to 869,041,139.54, 1,199,240,280.54 and 492,723,049.91 is: 679,937,118.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,041,139.54 : 1,199,240,280.54 = 492,723,049.91 : x
  2. Step 2: Convert to fraction form
    869,041,139.54/1,199,240,280.54 = 492,723,049.91/x
  3. Step 3: Cross multiply
    869,041,139.54x = 1,199,240,280.54 × 492,723,049.91
  4. Step 4: Simplify right side
    869,041,139.54x = 590,893,328,596,596,608
  5. Step 5: Solve for x
    x = 590,893,328,596,596,608/869,041,139.54
  6. Step 6: Final answer
    x = 679,937,118.87

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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.