Home / 208,390,319.31-312,630,618.65-62,811,702.03

Finding the Fourth Proportional to 208,390,319.31, 312,630,618.65 and 62,811,702.03

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Solution

The fourth proportional to 208,390,319.31, 312,630,618.65 and 62,811,702.03 is: 94,231,158.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,390,319.31 : 312,630,618.65 = 62,811,702.03 : x
  2. Step 2: Convert to fraction form
    208,390,319.31/312,630,618.65 = 62,811,702.03/x
  3. Step 3: Cross multiply
    208,390,319.31x = 312,630,618.65 × 62,811,702.03
  4. Step 4: Simplify right side
    208,390,319.31x = 19,636,861,263,784,300
  5. Step 5: Solve for x
    x = 19,636,861,263,784,300/208,390,319.31
  6. Step 6: Final answer
    x = 94,231,158.76

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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.