Home / 112,477,205.37-155,156,020.35-65,428,985.14

Finding the Fourth Proportional to 112,477,205.37, 155,156,020.35 and 65,428,985.14

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Solution

The fourth proportional to 112,477,205.37, 155,156,020.35 and 65,428,985.14 is: 90,255,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,477,205.37 : 155,156,020.35 = 65,428,985.14 : x
  2. Step 2: Convert to fraction form
    112,477,205.37/155,156,020.35 = 65,428,985.14/x
  3. Step 3: Cross multiply
    112,477,205.37x = 155,156,020.35 × 65,428,985.14
  4. Step 4: Simplify right side
    112,477,205.37x = 10,151,700,949,861,688
  5. Step 5: Solve for x
    x = 10,151,700,949,861,688/112,477,205.37
  6. Step 6: Final answer
    x = 90,255,629.28

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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.