Home / 437,018,712.90-655,528,069.35-389,401,599.30

Finding the Fourth Proportional to 437,018,712.90, 655,528,069.35 and 389,401,599.30

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Solution

The fourth proportional to 437,018,712.90, 655,528,069.35 and 389,401,599.30 is: 584,102,398.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,018,712.90 : 655,528,069.35 = 389,401,599.30 : x
  2. Step 2: Convert to fraction form
    437,018,712.90/655,528,069.35 = 389,401,599.30/x
  3. Step 3: Cross multiply
    437,018,712.90x = 655,528,069.35 × 389,401,599.30
  4. Step 4: Simplify right side
    437,018,712.90x = 255,263,678,590,931,328
  5. Step 5: Solve for x
    x = 255,263,678,590,931,328/437,018,712.90
  6. Step 6: Final answer
    x = 584,102,398.95

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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.