Home / 12,900,969.09-17,803,332.02-7,099,750.71

Finding the Fourth Proportional to 12,900,969.09, 17,803,332.02 and 7,099,750.71

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Solution

The fourth proportional to 12,900,969.09, 17,803,332.02 and 7,099,750.71 is: 9,797,653.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900,969.09 : 17,803,332.02 = 7,099,750.71 : x
  2. Step 2: Convert to fraction form
    12,900,969.09/17,803,332.02 = 7,099,750.71/x
  3. Step 3: Cross multiply
    12,900,969.09x = 17,803,332.02 × 7,099,750.71
  4. Step 4: Simplify right side
    12,900,969.09x = 126,399,219,167,110.11
  5. Step 5: Solve for x
    x = 126,399,219,167,110.11/12,900,969.09
  6. Step 6: Final answer
    x = 9,797,653.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.