Home / 12,880,007.60-19,320,011.40-9,100,871.60

Finding the Fourth Proportional to 12,880,007.60, 19,320,011.40 and 9,100,871.60

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Solution

The fourth proportional to 12,880,007.60, 19,320,011.40 and 9,100,871.60 is: 13,651,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880,007.60 : 19,320,011.40 = 9,100,871.60 : x
  2. Step 2: Convert to fraction form
    12,880,007.60/19,320,011.40 = 9,100,871.60/x
  3. Step 3: Cross multiply
    12,880,007.60x = 19,320,011.40 × 9,100,871.60
  4. Step 4: Simplify right side
    12,880,007.60x = 175,828,943,061,936.22
  5. Step 5: Solve for x
    x = 175,828,943,061,936.22/12,880,007.60
  6. Step 6: Final answer
    x = 13,651,307.40

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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.