Home / 128,203,152.60-176,920,506.94-69,465,771.40

Finding the Fourth Proportional to 128,203,152.60, 176,920,506.94 and 69,465,771.40

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Solution

The fourth proportional to 128,203,152.60, 176,920,506.94 and 69,465,771.40 is: 95,862,849.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,203,152.60 : 176,920,506.94 = 69,465,771.40 : x
  2. Step 2: Convert to fraction form
    128,203,152.60/176,920,506.94 = 69,465,771.40/x
  3. Step 3: Cross multiply
    128,203,152.60x = 176,920,506.94 × 69,465,771.40
  4. Step 4: Simplify right side
    128,203,152.60x = 12,289,919,490,450,186
  5. Step 5: Solve for x
    x = 12,289,919,490,450,186/128,203,152.60
  6. Step 6: Final answer
    x = 95,862,849.25

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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.