Home / 85,018,632,635.92-127,528,425,686.40-28,358,340,088.72

Finding the Fourth Proportional to 85,018,632,635.92, 127,528,425,686.40 and 28,358,340,088.72

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Solution

The fourth proportional to 85,018,632,635.92, 127,528,425,686.40 and 28,358,340,088.72 is: 42,537,669,149.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,018,632,635.92 : 127,528,425,686.40 = 28,358,340,088.72 : x
  2. Step 2: Convert to fraction form
    85,018,632,635.92/127,528,425,686.40 = 28,358,340,088.72/x
  3. Step 3: Cross multiply
    85,018,632,635.92x = 127,528,425,686.40 × 28,358,340,088.72
  4. Step 4: Simplify right side
    85,018,632,635.92x = 3,616,494,466,593,986,707,456
  5. Step 5: Solve for x
    x = 3,616,494,466,593,986,707,456/85,018,632,635.92
  6. Step 6: Final answer
    x = 42,537,669,149.32

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1.5x scale

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.