Home / 85,018,811.20-127,528,216.80-33,908,718.40

Finding the Fourth Proportional to 85,018,811.20, 127,528,216.80 and 33,908,718.40

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Solution

The fourth proportional to 85,018,811.20, 127,528,216.80 and 33,908,718.40 is: 50,863,077.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,018,811.20 : 127,528,216.80 = 33,908,718.40 : x
  2. Step 2: Convert to fraction form
    85,018,811.20/127,528,216.80 = 33,908,718.40/x
  3. Step 3: Cross multiply
    85,018,811.20x = 127,528,216.80 × 33,908,718.40
  4. Step 4: Simplify right side
    85,018,811.20x = 4,324,318,391,525,349
  5. Step 5: Solve for x
    x = 4,324,318,391,525,349/85,018,811.20
  6. Step 6: Final answer
    x = 50,863,077.60

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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.