Home / 142,539,662.90-196,704,734.82-77,349,566.90

Finding the Fourth Proportional to 142,539,662.90, 196,704,734.82 and 77,349,566.90

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Solution

The fourth proportional to 142,539,662.90, 196,704,734.82 and 77,349,566.90 is: 106,742,402.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,539,662.90 : 196,704,734.82 = 77,349,566.90 : x
  2. Step 2: Convert to fraction form
    142,539,662.90/196,704,734.82 = 77,349,566.90/x
  3. Step 3: Cross multiply
    142,539,662.90x = 196,704,734.82 × 77,349,566.90
  4. Step 4: Simplify right side
    142,539,662.90x = 15,215,026,045,506,350
  5. Step 5: Solve for x
    x = 15,215,026,045,506,350/142,539,662.90
  6. Step 6: Final answer
    x = 106,742,402.33

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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.