Home / 822,073,742.40-1,233,110,613.60-208,657,968.15

Finding the Fourth Proportional to 822,073,742.40, 1,233,110,613.60 and 208,657,968.15

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Solution

The fourth proportional to 822,073,742.40, 1,233,110,613.60 and 208,657,968.15 is: 312,986,952.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,073,742.40 : 1,233,110,613.60 = 208,657,968.15 : x
  2. Step 2: Convert to fraction form
    822,073,742.40/1,233,110,613.60 = 208,657,968.15/x
  3. Step 3: Cross multiply
    822,073,742.40x = 1,233,110,613.60 × 208,657,968.15
  4. Step 4: Simplify right side
    822,073,742.40x = 257,298,355,137,975,744
  5. Step 5: Solve for x
    x = 257,298,355,137,975,744/822,073,742.40
  6. Step 6: Final answer
    x = 312,986,952.23

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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.