Home / 20,465,402,871.20-30,698,104,306.80-12,510,368,830.40

Finding the Fourth Proportional to 20,465,402,871.20, 30,698,104,306.80 and 12,510,368,830.40

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Solution

The fourth proportional to 20,465,402,871.20, 30,698,104,306.80 and 12,510,368,830.40 is: 18,765,553,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,465,402,871.20 : 30,698,104,306.80 = 12,510,368,830.40 : x
  2. Step 2: Convert to fraction form
    20,465,402,871.20/30,698,104,306.80 = 12,510,368,830.40/x
  3. Step 3: Cross multiply
    20,465,402,871.20x = 30,698,104,306.80 × 12,510,368,830.40
  4. Step 4: Simplify right side
    20,465,402,871.20x = 384,044,607,272,158,691,328
  5. Step 5: Solve for x
    x = 384,044,607,272,158,691,328/20,465,402,871.20
  6. Step 6: Final answer
    x = 18,765,553,245.60

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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.