Home / 13,280,039.20-19,920,058.80-9,920,807.20

Finding the Fourth Proportional to 13,280,039.20, 19,920,058.80 and 9,920,807.20

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Solution

The fourth proportional to 13,280,039.20, 19,920,058.80 and 9,920,807.20 is: 14,881,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,039.20 : 19,920,058.80 = 9,920,807.20 : x
  2. Step 2: Convert to fraction form
    13,280,039.20/19,920,058.80 = 9,920,807.20/x
  3. Step 3: Cross multiply
    13,280,039.20x = 19,920,058.80 × 9,920,807.20
  4. Step 4: Simplify right side
    13,280,039.20x = 197,623,062,767,463.34
  5. Step 5: Solve for x
    x = 197,623,062,767,463.34/13,280,039.20
  6. Step 6: Final answer
    x = 14,881,210.80

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1.5x scale

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.