Home / 13,039,809.80-19,559,714.70-8,221,411.40

Finding the Fourth Proportional to 13,039,809.80, 19,559,714.70 and 8,221,411.40

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Solution

The fourth proportional to 13,039,809.80, 19,559,714.70 and 8,221,411.40 is: 12,332,117.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039,809.80 : 19,559,714.70 = 8,221,411.40 : x
  2. Step 2: Convert to fraction form
    13,039,809.80/19,559,714.70 = 8,221,411.40/x
  3. Step 3: Cross multiply
    13,039,809.80x = 19,559,714.70 × 8,221,411.40
  4. Step 4: Simplify right side
    13,039,809.80x = 160,808,461,415,327.59
  5. Step 5: Solve for x
    x = 160,808,461,415,327.59/13,039,809.80
  6. Step 6: Final answer
    x = 12,332,117.10

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Similar ratio
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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.