Home / 189,721,988,451.76-284,572,507,555.22-138,722,547,270.60

Finding the Fourth Proportional to 189,721,988,451.76, 284,572,507,555.22 and 138,722,547,270.60

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Solution

The fourth proportional to 189,721,988,451.76, 284,572,507,555.22 and 138,722,547,270.60 is: 208,076,161,616.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,721,988,451.76 : 284,572,507,555.22 = 138,722,547,270.60 : x
  2. Step 2: Convert to fraction form
    189,721,988,451.76/284,572,507,555.22 = 138,722,547,270.60/x
  3. Step 3: Cross multiply
    189,721,988,451.76x = 284,572,507,555.22 × 138,722,547,270.60
  4. Step 4: Simplify right side
    189,721,988,451.76x = 39,476,623,131,242,181,689,344
  5. Step 5: Solve for x
    x = 39,476,623,131,242,181,689,344/189,721,988,451.76
  6. Step 6: Final answer
    x = 208,076,161,616.24

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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.