Home / 30,406,987,002.43-45,636,739,003.76-21,097,272,651.76

Finding the Fourth Proportional to 30,406,987,002.43, 45,636,739,003.76 and 21,097,272,651.76

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Solution

The fourth proportional to 30,406,987,002.43, 45,636,739,003.76 and 21,097,272,651.76 is: 31,664,127,906.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,406,987,002.43 : 45,636,739,003.76 = 21,097,272,651.76 : x
  2. Step 2: Convert to fraction form
    30,406,987,002.43/45,636,739,003.76 = 21,097,272,651.76/x
  3. Step 3: Cross multiply
    30,406,987,002.43x = 45,636,739,003.76 × 21,097,272,651.76
  4. Step 4: Simplify right side
    30,406,987,002.43x = 962,810,725,699,534,716,928
  5. Step 5: Solve for x
    x = 962,810,725,699,534,716,928/30,406,987,002.43
  6. Step 6: Final answer
    x = 31,664,127,906.61

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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.