Home / 289,678,075.56-399,763,320.48-157,526,800.92

Finding the Fourth Proportional to 289,678,075.56, 399,763,320.48 and 157,526,800.92

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Solution

The fourth proportional to 289,678,075.56, 399,763,320.48 and 157,526,800.92 is: 217,391,105.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,678,075.56 : 399,763,320.48 = 157,526,800.92 : x
  2. Step 2: Convert to fraction form
    289,678,075.56/399,763,320.48 = 157,526,800.92/x
  3. Step 3: Cross multiply
    289,678,075.56x = 399,763,320.48 × 157,526,800.92
  4. Step 4: Simplify right side
    289,678,075.56x = 62,973,437,000,371,120
  5. Step 5: Solve for x
    x = 62,973,437,000,371,120/289,678,075.56
  6. Step 6: Final answer
    x = 217,391,105.21

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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.