Home / 426,411,750.45-639,557,909.95-146,288,015.88

Finding the Fourth Proportional to 426,411,750.45, 639,557,909.95 and 146,288,015.88

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Solution

The fourth proportional to 426,411,750.45, 639,557,909.95 and 146,288,015.88 is: 219,411,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,411,750.45 : 639,557,909.95 = 146,288,015.88 : x
  2. Step 2: Convert to fraction form
    426,411,750.45/639,557,909.95 = 146,288,015.88/x
  3. Step 3: Cross multiply
    426,411,750.45x = 639,557,909.95 × 146,288,015.88
  4. Step 4: Simplify right side
    426,411,750.45x = 93,559,657,686,945,216
  5. Step 5: Solve for x
    x = 93,559,657,686,945,216/426,411,750.45
  6. Step 6: Final answer
    x = 219,411,537.30

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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.