Home / 440,123,141.70-660,184,712.55-285,154,946.10

Finding the Fourth Proportional to 440,123,141.70, 660,184,712.55 and 285,154,946.10

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Solution

The fourth proportional to 440,123,141.70, 660,184,712.55 and 285,154,946.10 is: 427,732,419.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,123,141.70 : 660,184,712.55 = 285,154,946.10 : x
  2. Step 2: Convert to fraction form
    440,123,141.70/660,184,712.55 = 285,154,946.10/x
  3. Step 3: Cross multiply
    440,123,141.70x = 660,184,712.55 × 285,154,946.10
  4. Step 4: Simplify right side
    440,123,141.70x = 188,254,936,123,239,232
  5. Step 5: Solve for x
    x = 188,254,936,123,239,232/440,123,141.70
  6. Step 6: Final answer
    x = 427,732,419.15

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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.