Home / 9,988,657.40-14,982,986.10-5,205,688.40

Finding the Fourth Proportional to 9,988,657.40, 14,982,986.10 and 5,205,688.40

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Solution

The fourth proportional to 9,988,657.40, 14,982,986.10 and 5,205,688.40 is: 7,808,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988,657.40 : 14,982,986.10 = 5,205,688.40 : x
  2. Step 2: Convert to fraction form
    9,988,657.40/14,982,986.10 = 5,205,688.40/x
  3. Step 3: Cross multiply
    9,988,657.40x = 14,982,986.10 × 5,205,688.40
  4. Step 4: Simplify right side
    9,988,657.40x = 77,996,756,938,131.25
  5. Step 5: Solve for x
    x = 77,996,756,938,131.25/9,988,657.40
  6. Step 6: Final answer
    x = 7,808,532.60

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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.