Home / 138,529,075.60-207,656,561.40-65,617,703.20

Finding the Fourth Proportional to 138,529,075.60, 207,656,561.40 and 65,617,703.20

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Solution

The fourth proportional to 138,529,075.60, 207,656,561.40 and 65,617,703.20 is: 98,361,636.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,529,075.60 : 207,656,561.40 = 65,617,703.20 : x
  2. Step 2: Convert to fraction form
    138,529,075.60/207,656,561.40 = 65,617,703.20/x
  3. Step 3: Cross multiply
    138,529,075.60x = 207,656,561.40 × 65,617,703.20
  4. Step 4: Simplify right side
    138,529,075.60x = 13,625,946,613,477,778
  5. Step 5: Solve for x
    x = 13,625,946,613,477,778/138,529,075.60
  6. Step 6: Final answer
    x = 98,361,636.75

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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.