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Finding the Fourth Proportional to 978,960,020.10, 1,468,440,030.15 and 332,727,764.10

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Solution

The fourth proportional to 978,960,020.10, 1,468,440,030.15 and 332,727,764.10 is: 499,091,646.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,960,020.10 : 1,468,440,030.15 = 332,727,764.10 : x
  2. Step 2: Convert to fraction form
    978,960,020.10/1,468,440,030.15 = 332,727,764.10/x
  3. Step 3: Cross multiply
    978,960,020.10x = 1,468,440,030.15 × 332,727,764.10
  4. Step 4: Simplify right side
    978,960,020.10x = 488,590,767,946,746,176
  5. Step 5: Solve for x
    x = 488,590,767,946,746,176/978,960,020.10
  6. Step 6: Final answer
    x = 499,091,646.15

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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.