Home / 201,497,717.79-302,245,584.35-78,688,509.75

Finding the Fourth Proportional to 201,497,717.79, 302,245,584.35 and 78,688,509.75

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Solution

The fourth proportional to 201,497,717.79, 302,245,584.35 and 78,688,509.75 is: 118,032,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,497,717.79 : 302,245,584.35 = 78,688,509.75 : x
  2. Step 2: Convert to fraction form
    201,497,717.79/302,245,584.35 = 78,688,509.75/x
  3. Step 3: Cross multiply
    201,497,717.79x = 302,245,584.35 × 78,688,509.75
  4. Step 4: Simplify right side
    201,497,717.79x = 23,783,254,610,625,984
  5. Step 5: Solve for x
    x = 23,783,254,610,625,984/201,497,717.79
  6. Step 6: Final answer
    x = 118,032,377.10

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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.