Home / 157,439,513.90-236,203,507.65-76,663,117.10

Finding the Fourth Proportional to 157,439,513.90, 236,203,507.65 and 76,663,117.10

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Solution

The fourth proportional to 157,439,513.90, 236,203,507.65 and 76,663,117.10 is: 115,016,216.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,439,513.90 : 236,203,507.65 = 76,663,117.10 : x
  2. Step 2: Convert to fraction form
    157,439,513.90/236,203,507.65 = 76,663,117.10/x
  3. Step 3: Cross multiply
    157,439,513.90x = 236,203,507.65 × 76,663,117.10
  4. Step 4: Simplify right side
    157,439,513.90x = 18,108,097,166,402,696
  5. Step 5: Solve for x
    x = 18,108,097,166,402,696/157,439,513.90
  6. Step 6: Final answer
    x = 115,016,216.18

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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.