Home / 108,832,492.80-163,425,686.40-78,751,468.80

Finding the Fourth Proportional to 108,832,492.80, 163,425,686.40 and 78,751,468.80

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Solution

The fourth proportional to 108,832,492.80, 163,425,686.40 and 78,751,468.80 is: 118,255,242.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,832,492.80 : 163,425,686.40 = 78,751,468.80 : x
  2. Step 2: Convert to fraction form
    108,832,492.80/163,425,686.40 = 78,751,468.80/x
  3. Step 3: Cross multiply
    108,832,492.80x = 163,425,686.40 × 78,751,468.80
  4. Step 4: Simplify right side
    108,832,492.80x = 12,870,012,843,648,184
  5. Step 5: Solve for x
    x = 12,870,012,843,648,184/108,832,492.80
  6. Step 6: Final answer
    x = 118,255,242.64

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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.