Home / 286,489,971.81-429,734,421.09-89,768,444.85

Finding the Fourth Proportional to 286,489,971.81, 429,734,421.09 and 89,768,444.85

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Solution

The fourth proportional to 286,489,971.81, 429,734,421.09 and 89,768,444.85 is: 134,652,499.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,489,971.81 : 429,734,421.09 = 89,768,444.85 : x
  2. Step 2: Convert to fraction form
    286,489,971.81/429,734,421.09 = 89,768,444.85/x
  3. Step 3: Cross multiply
    286,489,971.81x = 429,734,421.09 × 89,768,444.85
  4. Step 4: Simplify right side
    286,489,971.81x = 38,576,590,679,764,336
  5. Step 5: Solve for x
    x = 38,576,590,679,764,336/286,489,971.81
  6. Step 6: Final answer
    x = 134,652,499.13

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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.