Home / 1,408,718,438.20-2,113,376,255.70-426,064,281.40

Finding the Fourth Proportional to 1,408,718,438.20, 2,113,376,255.70 and 426,064,281.40

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Solution

The fourth proportional to 1,408,718,438.20, 2,113,376,255.70 and 426,064,281.40 is: 639,186,732.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,718,438.20 : 2,113,376,255.70 = 426,064,281.40 : x
  2. Step 2: Convert to fraction form
    1,408,718,438.20/2,113,376,255.70 = 426,064,281.40/x
  3. Step 3: Cross multiply
    1,408,718,438.20x = 2,113,376,255.70 × 426,064,281.40
  4. Step 4: Simplify right side
    1,408,718,438.20x = 900,434,135,712,643,072
  5. Step 5: Solve for x
    x = 900,434,135,712,643,072/1,408,718,438.20
  6. Step 6: Final answer
    x = 639,186,732.63

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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.