Home / 1,146,146,113.08-1,581,672,128.11-644,357,133.46

Finding the Fourth Proportional to 1,146,146,113.08, 1,581,672,128.11 and 644,357,133.46

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Solution

The fourth proportional to 1,146,146,113.08, 1,581,672,128.11 and 644,357,133.46 is: 889,207,498.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,146,113.08 : 1,581,672,128.11 = 644,357,133.46 : x
  2. Step 2: Convert to fraction form
    1,146,146,113.08/1,581,672,128.11 = 644,357,133.46/x
  3. Step 3: Cross multiply
    1,146,146,113.08x = 1,581,672,128.11 × 644,357,133.46
  4. Step 4: Simplify right side
    1,146,146,113.08x = 1,019,161,718,551,005,312
  5. Step 5: Solve for x
    x = 1,019,161,718,551,005,312/1,146,146,113.08
  6. Step 6: Final answer
    x = 889,207,498.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.