Home / 161,938,654.80-242,963,969.40-156,339,934.80

Finding the Fourth Proportional to 161,938,654.80, 242,963,969.40 and 156,339,934.80

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Solution

The fourth proportional to 161,938,654.80, 242,963,969.40 and 156,339,934.80 is: 234,563,953.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,938,654.80 : 242,963,969.40 = 156,339,934.80 : x
  2. Step 2: Convert to fraction form
    161,938,654.80/242,963,969.40 = 156,339,934.80/x
  3. Step 3: Cross multiply
    161,938,654.80x = 242,963,969.40 × 156,339,934.80
  4. Step 4: Simplify right side
    161,938,654.80x = 37,984,971,134,745,200
  5. Step 5: Solve for x
    x = 37,984,971,134,745,200/161,938,654.80
  6. Step 6: Final answer
    x = 234,563,953.75

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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.