Home / 288,825,838.42-398,579,248.44-156,666,675.36

Finding the Fourth Proportional to 288,825,838.42, 398,579,248.44 and 156,666,675.36

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Solution

The fourth proportional to 288,825,838.42, 398,579,248.44 and 156,666,675.36 is: 216,199,790.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,825,838.42 : 398,579,248.44 = 156,666,675.36 : x
  2. Step 2: Convert to fraction form
    288,825,838.42/398,579,248.44 = 156,666,675.36/x
  3. Step 3: Cross multiply
    288,825,838.42x = 398,579,248.44 × 156,666,675.36
  4. Step 4: Simplify right side
    288,825,838.42x = 62,444,085,720,515,128
  5. Step 5: Solve for x
    x = 62,444,085,720,515,128/288,825,838.42
  6. Step 6: Final answer
    x = 216,199,790.37

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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.