Home / 158,019,581.61-218,065,416.01-87,455,329.50

Finding the Fourth Proportional to 158,019,581.61, 218,065,416.01 and 87,455,329.50

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Solution

The fourth proportional to 158,019,581.61, 218,065,416.01 and 87,455,329.50 is: 120,687,465.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,019,581.61 : 218,065,416.01 = 87,455,329.50 : x
  2. Step 2: Convert to fraction form
    158,019,581.61/218,065,416.01 = 87,455,329.50/x
  3. Step 3: Cross multiply
    158,019,581.61x = 218,065,416.01 × 87,455,329.50
  4. Step 4: Simplify right side
    158,019,581.61x = 19,070,982,809,709,124
  5. Step 5: Solve for x
    x = 19,070,982,809,709,124/158,019,581.61
  6. Step 6: Final answer
    x = 120,687,465.54

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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.