Home / 185,371,409.60-278,057,114.40-142,457,220.80

Finding the Fourth Proportional to 185,371,409.60, 278,057,114.40 and 142,457,220.80

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Solution

The fourth proportional to 185,371,409.60, 278,057,114.40 and 142,457,220.80 is: 213,685,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,371,409.60 : 278,057,114.40 = 142,457,220.80 : x
  2. Step 2: Convert to fraction form
    185,371,409.60/278,057,114.40 = 142,457,220.80/x
  3. Step 3: Cross multiply
    185,371,409.60x = 278,057,114.40 × 142,457,220.80
  4. Step 4: Simplify right side
    185,371,409.60x = 39,611,243,741,091,656
  5. Step 5: Solve for x
    x = 39,611,243,741,091,656/185,371,409.60
  6. Step 6: Final answer
    x = 213,685,831.20

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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.