Home / 12,357,111.20-18,535,666.80-10,257,591.20

Finding the Fourth Proportional to 12,357,111.20, 18,535,666.80 and 10,257,591.20

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Solution

The fourth proportional to 12,357,111.20, 18,535,666.80 and 10,257,591.20 is: 15,386,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357,111.20 : 18,535,666.80 = 10,257,591.20 : x
  2. Step 2: Convert to fraction form
    12,357,111.20/18,535,666.80 = 10,257,591.20/x
  3. Step 3: Cross multiply
    12,357,111.20x = 18,535,666.80 × 10,257,591.20
  4. Step 4: Simplify right side
    12,357,111.20x = 190,131,292,653,812.16
  5. Step 5: Solve for x
    x = 190,131,292,653,812.16/12,357,111.20
  6. Step 6: Final answer
    x = 15,386,386.80

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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.