Home / 20,465,402,870.20-30,698,104,305.30-12,510,368,829.40

Finding the Fourth Proportional to 20,465,402,870.20, 30,698,104,305.30 and 12,510,368,829.40

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Solution

The fourth proportional to 20,465,402,870.20, 30,698,104,305.30 and 12,510,368,829.40 is: 18,765,553,244.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,465,402,870.20 : 30,698,104,305.30 = 12,510,368,829.40 : x
  2. Step 2: Convert to fraction form
    20,465,402,870.20/30,698,104,305.30 = 12,510,368,829.40/x
  3. Step 3: Cross multiply
    20,465,402,870.20x = 30,698,104,305.30 × 12,510,368,829.40
  4. Step 4: Simplify right side
    20,465,402,870.20x = 384,044,607,222,695,067,648
  5. Step 5: Solve for x
    x = 384,044,607,222,695,067,648/20,465,402,870.20
  6. Step 6: Final answer
    x = 18,765,553,244.10

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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.