Home / 388,800,800.40-583,285,181.40-116,199,123.60

Finding the Fourth Proportional to 388,800,800.40, 583,285,181.40 and 116,199,123.60

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Solution

The fourth proportional to 388,800,800.40, 583,285,181.40 and 116,199,123.60 is: 174,323,784.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,800,800.40 : 583,285,181.40 = 116,199,123.60 : x
  2. Step 2: Convert to fraction form
    388,800,800.40/583,285,181.40 = 116,199,123.60/x
  3. Step 3: Cross multiply
    388,800,800.40x = 583,285,181.40 × 116,199,123.60
  4. Step 4: Simplify right side
    388,800,800.40x = 67,777,226,887,547,016
  5. Step 5: Solve for x
    x = 67,777,226,887,547,016/388,800,800.40
  6. Step 6: Final answer
    x = 174,323,784.36

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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.