Home / 65,154,187.78-89,871,461.85-40,025,300.74

Finding the Fourth Proportional to 65,154,187.78, 89,871,461.85 and 40,025,300.74

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Solution

The fourth proportional to 65,154,187.78, 89,871,461.85 and 40,025,300.74 is: 55,209,533.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,154,187.78 : 89,871,461.85 = 40,025,300.74 : x
  2. Step 2: Convert to fraction form
    65,154,187.78/89,871,461.85 = 40,025,300.74/x
  3. Step 3: Cross multiply
    65,154,187.78x = 89,871,461.85 × 40,025,300.74
  4. Step 4: Simplify right side
    65,154,187.78x = 3,597,132,288,489,686.50
  5. Step 5: Solve for x
    x = 3,597,132,288,489,686.50/65,154,187.78
  6. Step 6: Final answer
    x = 55,209,533.13

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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.