Home / 385,570,241.03-578,373,962.09-126,779,731.67

Finding the Fourth Proportional to 385,570,241.03, 578,373,962.09 and 126,779,731.67

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Solution

The fourth proportional to 385,570,241.03, 578,373,962.09 and 126,779,731.67 is: 190,175,713.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,570,241.03 : 578,373,962.09 = 126,779,731.67 : x
  2. Step 2: Convert to fraction form
    385,570,241.03/578,373,962.09 = 126,779,731.67/x
  3. Step 3: Cross multiply
    385,570,241.03x = 578,373,962.09 × 126,779,731.67
  4. Step 4: Simplify right side
    385,570,241.03x = 73,326,095,719,496,992
  5. Step 5: Solve for x
    x = 73,326,095,719,496,992/385,570,241.03
  6. Step 6: Final answer
    x = 190,175,713.57

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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.