Home / 242,712,136.80-364,068,205.20-81,154,072.80

Finding the Fourth Proportional to 242,712,136.80, 364,068,205.20 and 81,154,072.80

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Solution

The fourth proportional to 242,712,136.80, 364,068,205.20 and 81,154,072.80 is: 121,731,109.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,712,136.80 : 364,068,205.20 = 81,154,072.80 : x
  2. Step 2: Convert to fraction form
    242,712,136.80/364,068,205.20 = 81,154,072.80/x
  3. Step 3: Cross multiply
    242,712,136.80x = 364,068,205.20 × 81,154,072.80
  4. Step 4: Simplify right side
    242,712,136.80x = 29,545,617,628,966,136
  5. Step 5: Solve for x
    x = 29,545,617,628,966,136/242,712,136.80
  6. Step 6: Final answer
    x = 121,731,109.20

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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.