Home / 248,425,728.72-342,828,911.56-144,065,763.28

Finding the Fourth Proportional to 248,425,728.72, 342,828,911.56 and 144,065,763.28

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Solution

The fourth proportional to 248,425,728.72, 342,828,911.56 and 144,065,763.28 is: 198,811,568.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,425,728.72 : 342,828,911.56 = 144,065,763.28 : x
  2. Step 2: Convert to fraction form
    248,425,728.72/342,828,911.56 = 144,065,763.28/x
  3. Step 3: Cross multiply
    248,425,728.72x = 342,828,911.56 × 144,065,763.28
  4. Step 4: Simplify right side
    248,425,728.72x = 49,389,908,818,343,016
  5. Step 5: Solve for x
    x = 49,389,908,818,343,016/248,425,728.72
  6. Step 6: Final answer
    x = 198,811,568.64

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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.