Home / 30,406,987,000.42-45,636,739,000.75-21,097,272,649.76

Finding the Fourth Proportional to 30,406,987,000.42, 45,636,739,000.75 and 21,097,272,649.76

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Solution

The fourth proportional to 30,406,987,000.42, 45,636,739,000.75 and 21,097,272,649.76 is: 31,664,127,903.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,406,987,000.42 : 45,636,739,000.75 = 21,097,272,649.76 : x
  2. Step 2: Convert to fraction form
    30,406,987,000.42/45,636,739,000.75 = 21,097,272,649.76/x
  3. Step 3: Cross multiply
    30,406,987,000.42x = 45,636,739,000.75 × 21,097,272,649.76
  4. Step 4: Simplify right side
    30,406,987,000.42x = 962,810,725,544,842,756,096
  5. Step 5: Solve for x
    x = 962,810,725,544,842,756,096/30,406,987,000.42
  6. Step 6: Final answer
    x = 31,664,127,903.61

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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.