Home / 215,223,639.68-297,015,792-117,443,861.12

Finding the Fourth Proportional to 215,223,639.68, 297,015,792 and 117,443,861.12

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Solution

The fourth proportional to 215,223,639.68, 297,015,792 and 117,443,861.12 is: 162,076,440.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,223,639.68 : 297,015,792 = 117,443,861.12 : x
  2. Step 2: Convert to fraction form
    215,223,639.68/297,015,792 = 117,443,861.12/x
  3. Step 3: Cross multiply
    215,223,639.68x = 297,015,792 × 117,443,861.12
  4. Step 4: Simplify right side
    215,223,639.68x = 34,882,681,426,094,808
  5. Step 5: Solve for x
    x = 34,882,681,426,094,808/215,223,639.68
  6. Step 6: Final answer
    x = 162,076,440.48

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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.