Home / 21,104,891,298.73-31,658,355,025.76-6,939,543,417.49

Finding the Fourth Proportional to 21,104,891,298.73, 31,658,355,025.76 and 6,939,543,417.49

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Solution

The fourth proportional to 21,104,891,298.73, 31,658,355,025.76 and 6,939,543,417.49 is: 10,409,649,882.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,104,891,298.73 : 31,658,355,025.76 = 6,939,543,417.49 : x
  2. Step 2: Convert to fraction form
    21,104,891,298.73/31,658,355,025.76 = 6,939,543,417.49/x
  3. Step 3: Cross multiply
    21,104,891,298.73x = 31,658,355,025.76 × 6,939,543,417.49
  4. Step 4: Simplify right side
    21,104,891,298.73x = 219,694,529,227,574,247,424
  5. Step 5: Solve for x
    x = 219,694,529,227,574,247,424/21,104,891,298.73
  6. Step 6: Final answer
    x = 10,409,649,882.48

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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.