Home / 147,877,815.12-204,055,674.96-81,787,812.36

Finding the Fourth Proportional to 147,877,815.12, 204,055,674.96 and 81,787,812.36

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Solution

The fourth proportional to 147,877,815.12, 204,055,674.96 and 81,787,812.36 is: 112,858,492.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,877,815.12 : 204,055,674.96 = 81,787,812.36 : x
  2. Step 2: Convert to fraction form
    147,877,815.12/204,055,674.96 = 81,787,812.36/x
  3. Step 3: Cross multiply
    147,877,815.12x = 204,055,674.96 × 81,787,812.36
  4. Step 4: Simplify right side
    147,877,815.12x = 16,689,267,254,621,632
  5. Step 5: Solve for x
    x = 16,689,267,254,621,632/147,877,815.12
  6. Step 6: Final answer
    x = 112,858,492.27

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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.