Home / 154,440,897.15-213,141,582.25-87,471,768.56

Finding the Fourth Proportional to 154,440,897.15, 213,141,582.25 and 87,471,768.56

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Solution

The fourth proportional to 154,440,897.15, 213,141,582.25 and 87,471,768.56 is: 120,718,485.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,440,897.15 : 213,141,582.25 = 87,471,768.56 : x
  2. Step 2: Convert to fraction form
    154,440,897.15/213,141,582.25 = 87,471,768.56/x
  3. Step 3: Cross multiply
    154,440,897.15x = 213,141,582.25 × 87,471,768.56
  4. Step 4: Simplify right side
    154,440,897.15x = 18,643,871,151,581,140
  5. Step 5: Solve for x
    x = 18,643,871,151,581,140/154,440,897.15
  6. Step 6: Final answer
    x = 120,718,485.17

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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.