Home / 208,011,658.40-312,017,487.60-100,516,234.40

Finding the Fourth Proportional to 208,011,658.40, 312,017,487.60 and 100,516,234.40

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Solution

The fourth proportional to 208,011,658.40, 312,017,487.60 and 100,516,234.40 is: 150,774,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,011,658.40 : 312,017,487.60 = 100,516,234.40 : x
  2. Step 2: Convert to fraction form
    208,011,658.40/312,017,487.60 = 100,516,234.40/x
  3. Step 3: Cross multiply
    208,011,658.40x = 312,017,487.60 × 100,516,234.40
  4. Step 4: Simplify right side
    208,011,658.40x = 31,362,822,920,500,696
  5. Step 5: Solve for x
    x = 31,362,822,920,500,696/208,011,658.40
  6. Step 6: Final answer
    x = 150,774,351.60

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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.