Home / 1,412,236,431.40-2,118,354,647.10-442,886,492.20

Finding the Fourth Proportional to 1,412,236,431.40, 2,118,354,647.10 and 442,886,492.20

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Solution

The fourth proportional to 1,412,236,431.40, 2,118,354,647.10 and 442,886,492.20 is: 664,329,738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,236,431.40 : 2,118,354,647.10 = 442,886,492.20 : x
  2. Step 2: Convert to fraction form
    1,412,236,431.40/2,118,354,647.10 = 442,886,492.20/x
  3. Step 3: Cross multiply
    1,412,236,431.40x = 2,118,354,647.10 × 442,886,492.20
  4. Step 4: Simplify right side
    1,412,236,431.40x = 938,190,658,889,687,808
  5. Step 5: Solve for x
    x = 938,190,658,889,687,808/1,412,236,431.40
  6. Step 6: Final answer
    x = 664,329,738.30

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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.