Home / 153,739,430.10-212,165,172.45-84,127,744.98

Finding the Fourth Proportional to 153,739,430.10, 212,165,172.45 and 84,127,744.98

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Solution

The fourth proportional to 153,739,430.10, 212,165,172.45 and 84,127,744.98 is: 116,098,892.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,739,430.10 : 212,165,172.45 = 84,127,744.98 : x
  2. Step 2: Convert to fraction form
    153,739,430.10/212,165,172.45 = 84,127,744.98/x
  3. Step 3: Cross multiply
    153,739,430.10x = 212,165,172.45 × 84,127,744.98
  4. Step 4: Simplify right side
    153,739,430.10x = 17,848,977,521,511,322
  5. Step 5: Solve for x
    x = 17,848,977,521,511,322/153,739,430.10
  6. Step 6: Final answer
    x = 116,098,892.20

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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.