Home / 186,624,926.40-279,937,389.60-140,640,772.80

Finding the Fourth Proportional to 186,624,926.40, 279,937,389.60 and 140,640,772.80

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Solution

The fourth proportional to 186,624,926.40, 279,937,389.60 and 140,640,772.80 is: 210,961,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,624,926.40 : 279,937,389.60 = 140,640,772.80 : x
  2. Step 2: Convert to fraction form
    186,624,926.40/279,937,389.60 = 140,640,772.80/x
  3. Step 3: Cross multiply
    186,624,926.40x = 279,937,389.60 × 140,640,772.80
  4. Step 4: Simplify right side
    186,624,926.40x = 39,370,610,808,958,688
  5. Step 5: Solve for x
    x = 39,370,610,808,958,688/186,624,926.40
  6. Step 6: Final answer
    x = 210,961,159.20

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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.