Home / 385,500,179.40-578,032,968.64-126,645,897.12

Finding the Fourth Proportional to 385,500,179.40, 578,032,968.64 and 126,645,897.12

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Solution

The fourth proportional to 385,500,179.40, 578,032,968.64 and 126,645,897.12 is: 189,897,457.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,500,179.40 : 578,032,968.64 = 126,645,897.12 : x
  2. Step 2: Convert to fraction form
    385,500,179.40/578,032,968.64 = 126,645,897.12/x
  3. Step 3: Cross multiply
    385,500,179.40x = 578,032,968.64 × 126,645,897.12
  4. Step 4: Simplify right side
    385,500,179.40x = 73,205,503,878,349,632
  5. Step 5: Solve for x
    x = 73,205,503,878,349,632/385,500,179.40
  6. Step 6: Final answer
    x = 189,897,457.36

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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.