Home / 189,721,988,429.83-284,572,507,522.29-138,722,547,248.70

Finding the Fourth Proportional to 189,721,988,429.83, 284,572,507,522.29 and 138,722,547,248.70

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Solution

The fourth proportional to 189,721,988,429.83, 284,572,507,522.29 and 138,722,547,248.70 is: 208,076,161,583.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,721,988,429.83 : 284,572,507,522.29 = 138,722,547,248.70 : x
  2. Step 2: Convert to fraction form
    189,721,988,429.83/284,572,507,522.29 = 138,722,547,248.70/x
  3. Step 3: Cross multiply
    189,721,988,429.83x = 284,572,507,522.29 × 138,722,547,248.70
  4. Step 4: Simplify right side
    189,721,988,429.83x = 39,476,623,120,441,907,609,600
  5. Step 5: Solve for x
    x = 39,476,623,120,441,907,609,600/189,721,988,429.83
  6. Step 6: Final answer
    x = 208,076,161,583.36

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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.