Home / 285,201,652,402.48-393,587,719,145.97-156,747,654,135.22

Finding the Fourth Proportional to 285,201,652,402.48, 393,587,719,145.97 and 156,747,654,135.22

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Solution

The fourth proportional to 285,201,652,402.48, 393,587,719,145.97 and 156,747,654,135.22 is: 216,316,950,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,201,652,402.48 : 393,587,719,145.97 = 156,747,654,135.22 : x
  2. Step 2: Convert to fraction form
    285,201,652,402.48/393,587,719,145.97 = 156,747,654,135.22/x
  3. Step 3: Cross multiply
    285,201,652,402.48x = 393,587,719,145.97 × 156,747,654,135.22
  4. Step 4: Simplify right side
    285,201,652,402.48x = 61,693,951,672,562,606,931,968
  5. Step 5: Solve for x
    x = 61,693,951,672,562,606,931,968/285,201,652,402.48
  6. Step 6: Final answer
    x = 216,316,950,315.21

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1.5x scale

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.