Home / 155,637,707.12-214,780,880.22-85,073,412.14

Finding the Fourth Proportional to 155,637,707.12, 214,780,880.22 and 85,073,412.14

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Solution

The fourth proportional to 155,637,707.12, 214,780,880.22 and 85,073,412.14 is: 117,401,770.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,637,707.12 : 214,780,880.22 = 85,073,412.14 : x
  2. Step 2: Convert to fraction form
    155,637,707.12/214,780,880.22 = 85,073,412.14/x
  3. Step 3: Cross multiply
    155,637,707.12x = 214,780,880.22 × 85,073,412.14
  4. Step 4: Simplify right side
    155,637,707.12x = 18,272,142,342,748,032
  5. Step 5: Solve for x
    x = 18,272,142,342,748,032/155,637,707.12
  6. Step 6: Final answer
    x = 117,401,770.31

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1.5x scale

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.