Home / 28,072,689.40-42,109,034.10-8,904,946.60

Finding the Fourth Proportional to 28,072,689.40, 42,109,034.10 and 8,904,946.60

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Solution

The fourth proportional to 28,072,689.40, 42,109,034.10 and 8,904,946.60 is: 13,357,419.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,689.40 : 42,109,034.10 = 8,904,946.60 : x
  2. Step 2: Convert to fraction form
    28,072,689.40/42,109,034.10 = 8,904,946.60/x
  3. Step 3: Cross multiply
    28,072,689.40x = 42,109,034.10 × 8,904,946.60
  4. Step 4: Simplify right side
    28,072,689.40x = 374,978,700,038,079.06
  5. Step 5: Solve for x
    x = 374,978,700,038,079.06/28,072,689.40
  6. Step 6: Final answer
    x = 13,357,419.90

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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.