Home / 291,767,047.38-402,637,321.47-157,805,113.20

Finding the Fourth Proportional to 291,767,047.38, 402,637,321.47 and 157,805,113.20

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Solution

The fourth proportional to 291,767,047.38, 402,637,321.47 and 157,805,113.20 is: 217,770,405.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,767,047.38 : 402,637,321.47 = 157,805,113.20 : x
  2. Step 2: Convert to fraction form
    291,767,047.38/402,637,321.47 = 157,805,113.20/x
  3. Step 3: Cross multiply
    291,767,047.38x = 402,637,321.47 × 157,805,113.20
  4. Step 4: Simplify right side
    291,767,047.38x = 63,538,228,093,118,144
  5. Step 5: Solve for x
    x = 63,538,228,093,118,144/291,767,047.38
  6. Step 6: Final answer
    x = 217,770,405.07

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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.