Home / 185,371,421.60-278,057,132.40-142,457,232.80

Finding the Fourth Proportional to 185,371,421.60, 278,057,132.40 and 142,457,232.80

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Solution

The fourth proportional to 185,371,421.60, 278,057,132.40 and 142,457,232.80 is: 213,685,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,371,421.60 : 278,057,132.40 = 142,457,232.80 : x
  2. Step 2: Convert to fraction form
    185,371,421.60/278,057,132.40 = 142,457,232.80/x
  3. Step 3: Cross multiply
    185,371,421.60x = 278,057,132.40 × 142,457,232.80
  4. Step 4: Simplify right side
    185,371,421.60x = 39,611,249,642,007,224
  5. Step 5: Solve for x
    x = 39,611,249,642,007,224/185,371,421.60
  6. Step 6: Final answer
    x = 213,685,849.20

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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.