Home / 21,065,256,924.72-31,593,050,140.10-12,559,046,600.94

Finding the Fourth Proportional to 21,065,256,924.72, 31,593,050,140.10 and 12,559,046,600.94

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Solution

The fourth proportional to 21,065,256,924.72, 31,593,050,140.10 and 12,559,046,600.94 is: 18,835,687,140.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065,256,924.72 : 31,593,050,140.10 = 12,559,046,600.94 : x
  2. Step 2: Convert to fraction form
    21,065,256,924.72/31,593,050,140.10 = 12,559,046,600.94/x
  3. Step 3: Cross multiply
    21,065,256,924.72x = 31,593,050,140.10 × 12,559,046,600.94
  4. Step 4: Simplify right side
    21,065,256,924.72x = 396,778,588,975,349,891,072
  5. Step 5: Solve for x
    x = 396,778,588,975,349,891,072/21,065,256,924.72
  6. Step 6: Final answer
    x = 18,835,687,140.84

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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.