Home / 215,685,746,985.30-323,528,620,477.95-90,006,540,353.70

Finding the Fourth Proportional to 215,685,746,985.30, 323,528,620,477.95 and 90,006,540,353.70

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Solution

The fourth proportional to 215,685,746,985.30, 323,528,620,477.95 and 90,006,540,353.70 is: 135,009,810,530.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,685,746,985.30 : 323,528,620,477.95 = 90,006,540,353.70 : x
  2. Step 2: Convert to fraction form
    215,685,746,985.30/323,528,620,477.95 = 90,006,540,353.70/x
  3. Step 3: Cross multiply
    215,685,746,985.30x = 323,528,620,477.95 × 90,006,540,353.70
  4. Step 4: Simplify right side
    215,685,746,985.30x = 29,119,691,834,625,498,284,032
  5. Step 5: Solve for x
    x = 29,119,691,834,625,498,284,032/215,685,746,985.30
  6. Step 6: Final answer
    x = 135,009,810,530.55

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1.5x scale

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.