Home / 145,162,823.40-217,744,235.10-72,603,412.20

Finding the Fourth Proportional to 145,162,823.40, 217,744,235.10 and 72,603,412.20

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Solution

The fourth proportional to 145,162,823.40, 217,744,235.10 and 72,603,412.20 is: 108,905,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,162,823.40 : 217,744,235.10 = 72,603,412.20 : x
  2. Step 2: Convert to fraction form
    145,162,823.40/217,744,235.10 = 72,603,412.20/x
  3. Step 3: Cross multiply
    145,162,823.40x = 217,744,235.10 × 72,603,412.20
  4. Step 4: Simplify right side
    145,162,823.40x = 15,808,974,455,139,008
  5. Step 5: Solve for x
    x = 15,808,974,455,139,008/145,162,823.40
  6. Step 6: Final answer
    x = 108,905,118.30

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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.