Home / 788,973,869.20-1,183,460,803.80-329,241,974.80

Finding the Fourth Proportional to 788,973,869.20, 1,183,460,803.80 and 329,241,974.80

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Solution

The fourth proportional to 788,973,869.20, 1,183,460,803.80 and 329,241,974.80 is: 493,862,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,973,869.20 : 1,183,460,803.80 = 329,241,974.80 : x
  2. Step 2: Convert to fraction form
    788,973,869.20/1,183,460,803.80 = 329,241,974.80/x
  3. Step 3: Cross multiply
    788,973,869.20x = 1,183,460,803.80 × 329,241,974.80
  4. Step 4: Simplify right side
    788,973,869.20x = 389,644,972,141,507,328
  5. Step 5: Solve for x
    x = 389,644,972,141,507,328/788,973,869.20
  6. Step 6: Final answer
    x = 493,862,962.20

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Double scale
Find fourth proportional to 788,973,870.20, 1,183,460,805.30 and 329,241,975.80
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1.5x scale

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.