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Finding the Fourth Proportional to 559,899,680.80, 839,975,492.40 and 329,750,298.40

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Solution

The fourth proportional to 559,899,680.80, 839,975,492.40 and 329,750,298.40 is: 494,699,637.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,899,680.80 : 839,975,492.40 = 329,750,298.40 : x
  2. Step 2: Convert to fraction form
    559,899,680.80/839,975,492.40 = 329,750,298.40/x
  3. Step 3: Cross multiply
    559,899,680.80x = 839,975,492.40 × 329,750,298.40
  4. Step 4: Simplify right side
    559,899,680.80x = 276,982,169,267,586,912
  5. Step 5: Solve for x
    x = 276,982,169,267,586,912/559,899,680.80
  6. Step 6: Final answer
    x = 494,699,637.75

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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.