Home / 208,270,509.90-312,185,502.82-77,028,442.35

Finding the Fourth Proportional to 208,270,509.90, 312,185,502.82 and 77,028,442.35

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Solution

The fourth proportional to 208,270,509.90, 312,185,502.82 and 77,028,442.35 is: 115,461,200.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,270,509.90 : 312,185,502.82 = 77,028,442.35 : x
  2. Step 2: Convert to fraction form
    208,270,509.90/312,185,502.82 = 77,028,442.35/x
  3. Step 3: Cross multiply
    208,270,509.90x = 312,185,502.82 × 77,028,442.35
  4. Step 4: Simplify right side
    208,270,509.90x = 24,047,163,006,476,132
  5. Step 5: Solve for x
    x = 24,047,163,006,476,132/208,270,509.90
  6. Step 6: Final answer
    x = 115,461,200.04

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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.