Home / 15,352,123.19-21,177,048.65-9,919,615.19

Finding the Fourth Proportional to 15,352,123.19, 21,177,048.65 and 9,919,615.19

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Solution

The fourth proportional to 15,352,123.19, 21,177,048.65 and 9,919,615.19 is: 13,683,330.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,352,123.19 : 21,177,048.65 = 9,919,615.19 : x
  2. Step 2: Convert to fraction form
    15,352,123.19/21,177,048.65 = 9,919,615.19/x
  3. Step 3: Cross multiply
    15,352,123.19x = 21,177,048.65 × 9,919,615.19
  4. Step 4: Simplify right side
    15,352,123.19x = 210,068,173,312,425.69
  5. Step 5: Solve for x
    x = 210,068,173,312,425.69/15,352,123.19
  6. Step 6: Final answer
    x = 13,683,330.36

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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.