Home / 807,604,420.20-1,211,406,630.30-290,114,730.60

Finding the Fourth Proportional to 807,604,420.20, 1,211,406,630.30 and 290,114,730.60

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Solution

The fourth proportional to 807,604,420.20, 1,211,406,630.30 and 290,114,730.60 is: 435,172,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,604,420.20 : 1,211,406,630.30 = 290,114,730.60 : x
  2. Step 2: Convert to fraction form
    807,604,420.20/1,211,406,630.30 = 290,114,730.60/x
  3. Step 3: Cross multiply
    807,604,420.20x = 1,211,406,630.30 × 290,114,730.60
  4. Step 4: Simplify right side
    807,604,420.20x = 351,446,908,196,538,304
  5. Step 5: Solve for x
    x = 351,446,908,196,538,304/807,604,420.20
  6. Step 6: Final answer
    x = 435,172,095.90

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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.