Home / 291,767,042.30-402,637,314.51-157,805,108.14

Finding the Fourth Proportional to 291,767,042.30, 402,637,314.51 and 157,805,108.14

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Solution

The fourth proportional to 291,767,042.30, 402,637,314.51 and 157,805,108.14 is: 217,770,398.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,767,042.30 : 402,637,314.51 = 157,805,108.14 : x
  2. Step 2: Convert to fraction form
    291,767,042.30/402,637,314.51 = 157,805,108.14/x
  3. Step 3: Cross multiply
    291,767,042.30x = 402,637,314.51 × 157,805,108.14
  4. Step 4: Simplify right side
    291,767,042.30x = 63,538,224,955,397,152
  5. Step 5: Solve for x
    x = 63,538,224,955,397,152/291,767,042.30
  6. Step 6: Final answer
    x = 217,770,398.10

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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.