Home / 389,406,911.54-584,188,312-143,765,039.84

Finding the Fourth Proportional to 389,406,911.54, 584,188,312 and 143,765,039.84

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Solution

The fourth proportional to 389,406,911.54, 584,188,312 and 143,765,039.84 is: 215,676,336.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,406,911.54 : 584,188,312 = 143,765,039.84 : x
  2. Step 2: Convert to fraction form
    389,406,911.54/584,188,312 = 143,765,039.84/x
  3. Step 3: Cross multiply
    389,406,911.54x = 584,188,312 × 143,765,039.84
  4. Step 4: Simplify right side
    389,406,911.54x = 83,985,855,948,742,352
  5. Step 5: Solve for x
    x = 83,985,855,948,742,352/389,406,911.54
  6. Step 6: Final answer
    x = 215,676,336.14

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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.