Home / 20,629,547.90-30,945,349.70-7,851,042.98

Finding the Fourth Proportional to 20,629,547.90, 30,945,349.70 and 7,851,042.98

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Solution

The fourth proportional to 20,629,547.90, 30,945,349.70 and 7,851,042.98 is: 11,776,955.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629,547.90 : 30,945,349.70 = 7,851,042.98 : x
  2. Step 2: Convert to fraction form
    20,629,547.90/30,945,349.70 = 7,851,042.98/x
  3. Step 3: Cross multiply
    20,629,547.90x = 30,945,349.70 × 7,851,042.98
  4. Step 4: Simplify right side
    20,629,547.90x = 242,953,270,331,848.12
  5. Step 5: Solve for x
    x = 242,953,270,331,848.12/20,629,547.90
  6. Step 6: Final answer
    x = 11,776,955.64

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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.