Home / 806,651,231.40-1,207,961,307.90-645,408,095.40

Finding the Fourth Proportional to 806,651,231.40, 1,207,961,307.90 and 645,408,095.40

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Solution

The fourth proportional to 806,651,231.40, 1,207,961,307.90 and 645,408,095.40 is: 966,499,494.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,651,231.40 : 1,207,961,307.90 = 645,408,095.40 : x
  2. Step 2: Convert to fraction form
    806,651,231.40/1,207,961,307.90 = 645,408,095.40/x
  3. Step 3: Cross multiply
    806,651,231.40x = 1,207,961,307.90 × 645,408,095.40
  4. Step 4: Simplify right side
    806,651,231.40x = 779,628,007,048,632,064
  5. Step 5: Solve for x
    x = 779,628,007,048,632,064/806,651,231.40
  6. Step 6: Final answer
    x = 966,499,494.08

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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.