Home / 4,750,851.40-7,128,026.70-1,913,000.20

Finding the Fourth Proportional to 4,750,851.40, 7,128,026.70 and 1,913,000.20

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Solution

The fourth proportional to 4,750,851.40, 7,128,026.70 and 1,913,000.20 is: 2,870,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750,851.40 : 7,128,026.70 = 1,913,000.20 : x
  2. Step 2: Convert to fraction form
    4,750,851.40/7,128,026.70 = 1,913,000.20/x
  3. Step 3: Cross multiply
    4,750,851.40x = 7,128,026.70 × 1,913,000.20
  4. Step 4: Simplify right side
    4,750,851.40x = 13,635,916,502,705.34
  5. Step 5: Solve for x
    x = 13,635,916,502,705.34/4,750,851.40
  6. Step 6: Final answer
    x = 2,870,204.80

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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.