Home / 109,013,667.20-163,520,500.80-84,827,196.80

Finding the Fourth Proportional to 109,013,667.20, 163,520,500.80 and 84,827,196.80

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Solution

The fourth proportional to 109,013,667.20, 163,520,500.80 and 84,827,196.80 is: 127,240,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,013,667.20 : 163,520,500.80 = 84,827,196.80 : x
  2. Step 2: Convert to fraction form
    109,013,667.20/163,520,500.80 = 84,827,196.80/x
  3. Step 3: Cross multiply
    109,013,667.20x = 163,520,500.80 × 84,827,196.80
  4. Step 4: Simplify right side
    109,013,667.20x = 13,870,985,702,196,158
  5. Step 5: Solve for x
    x = 13,870,985,702,196,158/109,013,667.20
  6. Step 6: Final answer
    x = 127,240,795.20

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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.