Home / 480,875,006,575.72-663,668,730,920.10-290,782,047,128.68

Finding the Fourth Proportional to 480,875,006,575.72, 663,668,730,920.10 and 290,782,047,128.68

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Solution

The fourth proportional to 480,875,006,575.72, 663,668,730,920.10 and 290,782,047,128.68 is: 401,316,245,496.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,875,006,575.72 : 663,668,730,920.10 = 290,782,047,128.68 : x
  2. Step 2: Convert to fraction form
    480,875,006,575.72/663,668,730,920.10 = 290,782,047,128.68/x
  3. Step 3: Cross multiply
    480,875,006,575.72x = 663,668,730,920.10 × 290,782,047,128.68
  4. Step 4: Simplify right side
    480,875,006,575.72x = 192,982,952,192,239,753,756,672
  5. Step 5: Solve for x
    x = 192,982,952,192,239,753,756,672/480,875,006,575.72
  6. Step 6: Final answer
    x = 401,316,245,496.85

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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.