Home / 30,999,984.02-42,779,190.58-16,870,569.90

Finding the Fourth Proportional to 30,999,984.02, 42,779,190.58 and 16,870,569.90

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Solution

The fourth proportional to 30,999,984.02, 42,779,190.58 and 16,870,569.90 is: 23,280,957.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,999,984.02 : 42,779,190.58 = 16,870,569.90 : x
  2. Step 2: Convert to fraction form
    30,999,984.02/42,779,190.58 = 16,870,569.90/x
  3. Step 3: Cross multiply
    30,999,984.02x = 42,779,190.58 × 16,870,569.90
  4. Step 4: Simplify right side
    30,999,984.02x = 721,709,324,945,311.50
  5. Step 5: Solve for x
    x = 721,709,324,945,311.50/30,999,984.02
  6. Step 6: Final answer
    x = 23,280,957.97

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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.