Home / 1,314,159,535.72-1,971,244,357.95-318,178,905.94

Finding the Fourth Proportional to 1,314,159,535.72, 1,971,244,357.95 and 318,178,905.94

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Solution

The fourth proportional to 1,314,159,535.72, 1,971,244,357.95 and 318,178,905.94 is: 477,269,582.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,159,535.72 : 1,971,244,357.95 = 318,178,905.94 : x
  2. Step 2: Convert to fraction form
    1,314,159,535.72/1,971,244,357.95 = 318,178,905.94/x
  3. Step 3: Cross multiply
    1,314,159,535.72x = 1,971,244,357.95 × 318,178,905.94
  4. Step 4: Simplify right side
    1,314,159,535.72x = 627,208,373,152,928,768
  5. Step 5: Solve for x
    x = 627,208,373,152,928,768/1,314,159,535.72
  6. Step 6: Final answer
    x = 477,269,582.65

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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.