Home / 388,475,939.76-583,128,728.87-167,256,832.88

Finding the Fourth Proportional to 388,475,939.76, 583,128,728.87 and 167,256,832.88

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Solution

The fourth proportional to 388,475,939.76, 583,128,728.87 and 167,256,832.88 is: 251,063,848.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,475,939.76 : 583,128,728.87 = 167,256,832.88 : x
  2. Step 2: Convert to fraction form
    388,475,939.76/583,128,728.87 = 167,256,832.88/x
  3. Step 3: Cross multiply
    388,475,939.76x = 583,128,728.87 × 167,256,832.88
  4. Step 4: Simplify right side
    388,475,939.76x = 97,532,264,348,384,496
  5. Step 5: Solve for x
    x = 97,532,264,348,384,496/388,475,939.76
  6. Step 6: Final answer
    x = 251,063,848.15

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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.