Home / 830,860,301.60-1,246,290,452.40-400,878,605.60

Finding the Fourth Proportional to 830,860,301.60, 1,246,290,452.40 and 400,878,605.60

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Solution

The fourth proportional to 830,860,301.60, 1,246,290,452.40 and 400,878,605.60 is: 601,317,908.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,860,301.60 : 1,246,290,452.40 = 400,878,605.60 : x
  2. Step 2: Convert to fraction form
    830,860,301.60/1,246,290,452.40 = 400,878,605.60/x
  3. Step 3: Cross multiply
    830,860,301.60x = 1,246,290,452.40 × 400,878,605.60
  4. Step 4: Simplify right side
    830,860,301.60x = 499,611,178,730,705,216
  5. Step 5: Solve for x
    x = 499,611,178,730,705,216/830,860,301.60
  6. Step 6: Final answer
    x = 601,317,908.40

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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.