Home / 424,139,443.40-636,209,165.10-220,066,099.40

Finding the Fourth Proportional to 424,139,443.40, 636,209,165.10 and 220,066,099.40

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Solution

The fourth proportional to 424,139,443.40, 636,209,165.10 and 220,066,099.40 is: 330,099,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,139,443.40 : 636,209,165.10 = 220,066,099.40 : x
  2. Step 2: Convert to fraction form
    424,139,443.40/636,209,165.10 = 220,066,099.40/x
  3. Step 3: Cross multiply
    424,139,443.40x = 636,209,165.10 × 220,066,099.40
  4. Step 4: Simplify right side
    424,139,443.40x = 140,008,069,366,087,616
  5. Step 5: Solve for x
    x = 140,008,069,366,087,616/424,139,443.40
  6. Step 6: Final answer
    x = 330,099,149.10

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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.