Home / 508,728,012.30-763,148,005.65-185,681,868.30

Finding the Fourth Proportional to 508,728,012.30, 763,148,005.65 and 185,681,868.30

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Solution

The fourth proportional to 508,728,012.30, 763,148,005.65 and 185,681,868.30 is: 278,543,237.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,728,012.30 : 763,148,005.65 = 185,681,868.30 : x
  2. Step 2: Convert to fraction form
    508,728,012.30/763,148,005.65 = 185,681,868.30/x
  3. Step 3: Cross multiply
    508,728,012.30x = 763,148,005.65 × 185,681,868.30
  4. Step 4: Simplify right side
    508,728,012.30x = 141,702,747,478,510,960
  5. Step 5: Solve for x
    x = 141,702,747,478,510,960/508,728,012.30
  6. Step 6: Final answer
    x = 278,543,237.35

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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.