Home / 145,814,574.80-218,427,929.40-91,059,093.20

Finding the Fourth Proportional to 145,814,574.80, 218,427,929.40 and 91,059,093.20

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Solution

The fourth proportional to 145,814,574.80, 218,427,929.40 and 91,059,093.20 is: 136,405,083.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,814,574.80 : 218,427,929.40 = 91,059,093.20 : x
  2. Step 2: Convert to fraction form
    145,814,574.80/218,427,929.40 = 91,059,093.20/x
  3. Step 3: Cross multiply
    145,814,574.80x = 218,427,929.40 × 91,059,093.20
  4. Step 4: Simplify right side
    145,814,574.80x = 19,889,849,180,717,620
  5. Step 5: Solve for x
    x = 19,889,849,180,717,620/145,814,574.80
  6. Step 6: Final answer
    x = 136,405,083.02

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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.