Home / 261,926,498.40-392,889,747.60-108,521,570.40

Finding the Fourth Proportional to 261,926,498.40, 392,889,747.60 and 108,521,570.40

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Solution

The fourth proportional to 261,926,498.40, 392,889,747.60 and 108,521,570.40 is: 162,782,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,926,498.40 : 392,889,747.60 = 108,521,570.40 : x
  2. Step 2: Convert to fraction form
    261,926,498.40/392,889,747.60 = 108,521,570.40/x
  3. Step 3: Cross multiply
    261,926,498.40x = 392,889,747.60 × 108,521,570.40
  4. Step 4: Simplify right side
    261,926,498.40x = 42,637,012,403,611,632
  5. Step 5: Solve for x
    x = 42,637,012,403,611,632/261,926,498.40
  6. Step 6: Final answer
    x = 162,782,355.60

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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.