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Finding the Fourth Proportional to 136,668,015.60, 205,020,005.40 and 50,466,973.20

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Solution

The fourth proportional to 136,668,015.60, 205,020,005.40 and 50,466,973.20 is: 75,707,099.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,668,015.60 : 205,020,005.40 = 50,466,973.20 : x
  2. Step 2: Convert to fraction form
    136,668,015.60/205,020,005.40 = 50,466,973.20/x
  3. Step 3: Cross multiply
    136,668,015.60x = 205,020,005.40 × 50,466,973.20
  4. Step 4: Simplify right side
    136,668,015.60x = 10,346,739,117,985,656
  5. Step 5: Solve for x
    x = 10,346,739,117,985,656/136,668,015.60
  6. Step 6: Final answer
    x = 75,707,099.96

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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.