Home / 98,698,009.48-136,212,392.80-54,645,008.72

Finding the Fourth Proportional to 98,698,009.48, 136,212,392.80 and 54,645,008.72

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Solution

The fourth proportional to 98,698,009.48, 136,212,392.80 and 54,645,008.72 is: 75,415,172.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,698,009.48 : 136,212,392.80 = 54,645,008.72 : x
  2. Step 2: Convert to fraction form
    98,698,009.48/136,212,392.80 = 54,645,008.72/x
  3. Step 3: Cross multiply
    98,698,009.48x = 136,212,392.80 × 54,645,008.72
  4. Step 4: Simplify right side
    98,698,009.48x = 7,443,327,392,328,066
  5. Step 5: Solve for x
    x = 7,443,327,392,328,066/98,698,009.48
  6. Step 6: Final answer
    x = 75,415,172.32

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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.