Home / 291,730,361-402,589,111.14-157,768,277.24

Finding the Fourth Proportional to 291,730,361, 402,589,111.14 and 157,768,277.24

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Solution

The fourth proportional to 291,730,361, 402,589,111.14 and 157,768,277.24 is: 217,720,878.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,730,361 : 402,589,111.14 = 157,768,277.24 : x
  2. Step 2: Convert to fraction form
    291,730,361/402,589,111.14 = 157,768,277.24/x
  3. Step 3: Cross multiply
    291,730,361x = 402,589,111.14 × 157,768,277.24
  4. Step 4: Simplify right side
    291,730,361x = 63,515,790,500,140,696
  5. Step 5: Solve for x
    x = 63,515,790,500,140,696/291,730,361
  6. Step 6: Final answer
    x = 217,720,878.56

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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.