Home / 806,651,230.40-1,207,961,306.40-645,408,094.40

Finding the Fourth Proportional to 806,651,230.40, 1,207,961,306.40 and 645,408,094.40

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Solution

The fourth proportional to 806,651,230.40, 1,207,961,306.40 and 645,408,094.40 is: 966,499,492.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,651,230.40 : 1,207,961,306.40 = 645,408,094.40 : x
  2. Step 2: Convert to fraction form
    806,651,230.40/1,207,961,306.40 = 645,408,094.40/x
  3. Step 3: Cross multiply
    806,651,230.40x = 1,207,961,306.40 × 645,408,094.40
  4. Step 4: Simplify right side
    806,651,230.40x = 779,628,004,872,558,592
  5. Step 5: Solve for x
    x = 779,628,004,872,558,592/806,651,230.40
  6. Step 6: Final answer
    x = 966,499,492.58

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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.