Home / 91,013,905.80-136,520,858.70-60,402,904.20

Finding the Fourth Proportional to 91,013,905.80, 136,520,858.70 and 60,402,904.20

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Solution

The fourth proportional to 91,013,905.80, 136,520,858.70 and 60,402,904.20 is: 90,604,356.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,013,905.80 : 136,520,858.70 = 60,402,904.20 : x
  2. Step 2: Convert to fraction form
    91,013,905.80/136,520,858.70 = 60,402,904.20/x
  3. Step 3: Cross multiply
    91,013,905.80x = 136,520,858.70 × 60,402,904.20
  4. Step 4: Simplify right side
    91,013,905.80x = 8,246,256,349,357,836
  5. Step 5: Solve for x
    x = 8,246,256,349,357,836/91,013,905.80
  6. Step 6: Final answer
    x = 90,604,356.30

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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.