Home / 154,264,819.52-212,884,866.96-84,651,365.36

Finding the Fourth Proportional to 154,264,819.52, 212,884,866.96 and 84,651,365.36

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Solution

The fourth proportional to 154,264,819.52, 212,884,866.96 and 84,651,365.36 is: 116,818,563.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,264,819.52 : 212,884,866.96 = 84,651,365.36 : x
  2. Step 2: Convert to fraction form
    154,264,819.52/212,884,866.96 = 84,651,365.36/x
  3. Step 3: Cross multiply
    154,264,819.52x = 212,884,866.96 × 84,651,365.36
  4. Step 4: Simplify right side
    154,264,819.52x = 18,020,994,652,645,952
  5. Step 5: Solve for x
    x = 18,020,994,652,645,952/154,264,819.52
  6. Step 6: Final answer
    x = 116,818,563.74

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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.