Home / 30,999,982.28-42,779,188.17-16,870,568.15

Finding the Fourth Proportional to 30,999,982.28, 42,779,188.17 and 16,870,568.15

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Solution

The fourth proportional to 30,999,982.28, 42,779,188.17 and 16,870,568.15 is: 23,280,955.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,999,982.28 : 42,779,188.17 = 16,870,568.15 : x
  2. Step 2: Convert to fraction form
    30,999,982.28/42,779,188.17 = 16,870,568.15/x
  3. Step 3: Cross multiply
    30,999,982.28x = 42,779,188.17 × 16,870,568.15
  4. Step 4: Simplify right side
    30,999,982.28x = 721,709,209,209,762.88
  5. Step 5: Solve for x
    x = 721,709,209,209,762.88/30,999,982.28
  6. Step 6: Final answer
    x = 23,280,955.54

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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.