Home / 401,858,187.40-602,787,281.10-311,158,923.40

Finding the Fourth Proportional to 401,858,187.40, 602,787,281.10 and 311,158,923.40

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Solution

The fourth proportional to 401,858,187.40, 602,787,281.10 and 311,158,923.40 is: 466,738,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,858,187.40 : 602,787,281.10 = 311,158,923.40 : x
  2. Step 2: Convert to fraction form
    401,858,187.40/602,787,281.10 = 311,158,923.40/x
  3. Step 3: Cross multiply
    401,858,187.40x = 602,787,281.10 × 311,158,923.40
  4. Step 4: Simplify right side
    401,858,187.40x = 187,562,641,426,289,152
  5. Step 5: Solve for x
    x = 187,562,641,426,289,152/401,858,187.40
  6. Step 6: Final answer
    x = 466,738,385.10

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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.