Home / 142,226,865.77-213,340,381.08-39,990,903.40

Finding the Fourth Proportional to 142,226,865.77, 213,340,381.08 and 39,990,903.40

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Solution

The fourth proportional to 142,226,865.77, 213,340,381.08 and 39,990,903.40 is: 59,986,378.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,226,865.77 : 213,340,381.08 = 39,990,903.40 : x
  2. Step 2: Convert to fraction form
    142,226,865.77/213,340,381.08 = 39,990,903.40/x
  3. Step 3: Cross multiply
    142,226,865.77x = 213,340,381.08 × 39,990,903.40
  4. Step 4: Simplify right side
    142,226,865.77x = 8,531,674,569,822,811
  5. Step 5: Solve for x
    x = 8,531,674,569,822,811/142,226,865.77
  6. Step 6: Final answer
    x = 59,986,378.27

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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.