Home / 145,786,355.10-218,931,475.05-77,761,907.10

Finding the Fourth Proportional to 145,786,355.10, 218,931,475.05 and 77,761,907.10

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Solution

The fourth proportional to 145,786,355.10, 218,931,475.05 and 77,761,907.10 is: 116,777,245.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,786,355.10 : 218,931,475.05 = 77,761,907.10 : x
  2. Step 2: Convert to fraction form
    145,786,355.10/218,931,475.05 = 77,761,907.10/x
  3. Step 3: Cross multiply
    145,786,355.10x = 218,931,475.05 × 77,761,907.10
  4. Step 4: Simplify right side
    145,786,355.10x = 17,024,529,024,104,068
  5. Step 5: Solve for x
    x = 17,024,529,024,104,068/145,786,355.10
  6. Step 6: Final answer
    x = 116,777,245.80

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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.