Home / 108,868,195.80-163,113,336.90-70,509,965.40

Finding the Fourth Proportional to 108,868,195.80, 163,113,336.90 and 70,509,965.40

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Solution

The fourth proportional to 108,868,195.80, 163,113,336.90 and 70,509,965.40 is: 105,642,567.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,868,195.80 : 163,113,336.90 = 70,509,965.40 : x
  2. Step 2: Convert to fraction form
    108,868,195.80/163,113,336.90 = 70,509,965.40/x
  3. Step 3: Cross multiply
    108,868,195.80x = 163,113,336.90 × 70,509,965.40
  4. Step 4: Simplify right side
    108,868,195.80x = 11,501,115,741,097,544
  5. Step 5: Solve for x
    x = 11,501,115,741,097,544/108,868,195.80
  6. Step 6: Final answer
    x = 105,642,567.66

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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.