Home / 160,511,663.52-221,507,397.36-87,173,330.40

Finding the Fourth Proportional to 160,511,663.52, 221,507,397.36 and 87,173,330.40

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Solution

The fourth proportional to 160,511,663.52, 221,507,397.36 and 87,173,330.40 is: 120,299,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,511,663.52 : 221,507,397.36 = 87,173,330.40 : x
  2. Step 2: Convert to fraction form
    160,511,663.52/221,507,397.36 = 87,173,330.40/x
  3. Step 3: Cross multiply
    160,511,663.52x = 221,507,397.36 × 87,173,330.40
  4. Step 4: Simplify right side
    160,511,663.52x = 19,309,537,536,107,372
  5. Step 5: Solve for x
    x = 19,309,537,536,107,372/160,511,663.52
  6. Step 6: Final answer
    x = 120,299,902.90

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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.