Home / 163,356,009.20-245,034,013.80-72,488,783.60

Finding the Fourth Proportional to 163,356,009.20, 245,034,013.80 and 72,488,783.60

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Solution

The fourth proportional to 163,356,009.20, 245,034,013.80 and 72,488,783.60 is: 108,733,175.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,356,009.20 : 245,034,013.80 = 72,488,783.60 : x
  2. Step 2: Convert to fraction form
    163,356,009.20/245,034,013.80 = 72,488,783.60/x
  3. Step 3: Cross multiply
    163,356,009.20x = 245,034,013.80 × 72,488,783.60
  4. Step 4: Simplify right side
    163,356,009.20x = 17,762,217,600,987,614
  5. Step 5: Solve for x
    x = 17,762,217,600,987,614/163,356,009.20
  6. Step 6: Final answer
    x = 108,733,175.40

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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.