Home / 9,986,697.61-13,781,645.66-5,636,705.40

Finding the Fourth Proportional to 9,986,697.61, 13,781,645.66 and 5,636,705.40

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Solution

The fourth proportional to 9,986,697.61, 13,781,645.66 and 5,636,705.40 is: 7,778,655.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986,697.61 : 13,781,645.66 = 5,636,705.40 : x
  2. Step 2: Convert to fraction form
    9,986,697.61/13,781,645.66 = 5,636,705.40/x
  3. Step 3: Cross multiply
    9,986,697.61x = 13,781,645.66 × 5,636,705.40
  4. Step 4: Simplify right side
    9,986,697.61x = 77,683,076,484,425.03
  5. Step 5: Solve for x
    x = 77,683,076,484,425.03/9,986,697.61
  6. Step 6: Final answer
    x = 7,778,655.12

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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.