Home / 155,055,368.30-213,976,428.57-84,490,990.34

Finding the Fourth Proportional to 155,055,368.30, 213,976,428.57 and 84,490,990.34

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Solution

The fourth proportional to 155,055,368.30, 213,976,428.57 and 84,490,990.34 is: 116,597,577.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,055,368.30 : 213,976,428.57 = 84,490,990.34 : x
  2. Step 2: Convert to fraction form
    155,055,368.30/213,976,428.57 = 84,490,990.34/x
  3. Step 3: Cross multiply
    155,055,368.30x = 213,976,428.57 × 84,490,990.34
  4. Step 4: Simplify right side
    155,055,368.30x = 18,079,080,358,225,684
  5. Step 5: Solve for x
    x = 18,079,080,358,225,684/155,055,368.30
  6. Step 6: Final answer
    x = 116,597,577.74

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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.