Home / 8,112,152.10-12,168,228.15-4,920,881.70

Finding the Fourth Proportional to 8,112,152.10, 12,168,228.15 and 4,920,881.70

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Solution

The fourth proportional to 8,112,152.10, 12,168,228.15 and 4,920,881.70 is: 7,381,322.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112,152.10 : 12,168,228.15 = 4,920,881.70 : x
  2. Step 2: Convert to fraction form
    8,112,152.10/12,168,228.15 = 4,920,881.70/x
  3. Step 3: Cross multiply
    8,112,152.10x = 12,168,228.15 × 4,920,881.70
  4. Step 4: Simplify right side
    8,112,152.10x = 59,878,411,224,759.86
  5. Step 5: Solve for x
    x = 59,878,411,224,759.86/8,112,152.10
  6. Step 6: Final answer
    x = 7,381,322.55

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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.