Home / 10,152,140.10-15,228,210.15-8,640,485.70

Finding the Fourth Proportional to 10,152,140.10, 15,228,210.15 and 8,640,485.70

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Solution

The fourth proportional to 10,152,140.10, 15,228,210.15 and 8,640,485.70 is: 12,960,728.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,152,140.10 : 15,228,210.15 = 8,640,485.70 : x
  2. Step 2: Convert to fraction form
    10,152,140.10/15,228,210.15 = 8,640,485.70/x
  3. Step 3: Cross multiply
    10,152,140.10x = 15,228,210.15 × 8,640,485.70
  4. Step 4: Simplify right side
    10,152,140.10x = 131,579,132,037,669.84
  5. Step 5: Solve for x
    x = 131,579,132,037,669.84/10,152,140.10
  6. Step 6: Final answer
    x = 12,960,728.55

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Double scale
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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.