Home / 529,869,492.39-731,206,534.94-291,712,299.21

Finding the Fourth Proportional to 529,869,492.39, 731,206,534.94 and 291,712,299.21

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Solution

The fourth proportional to 529,869,492.39, 731,206,534.94 and 291,712,299.21 is: 402,555,615.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,869,492.39 : 731,206,534.94 = 291,712,299.21 : x
  2. Step 2: Convert to fraction form
    529,869,492.39/731,206,534.94 = 291,712,299.21/x
  3. Step 3: Cross multiply
    529,869,492.39x = 731,206,534.94 × 291,712,299.21
  4. Step 4: Simplify right side
    529,869,492.39x = 213,301,939,503,266,016
  5. Step 5: Solve for x
    x = 213,301,939,503,266,016/529,869,492.39
  6. Step 6: Final answer
    x = 402,555,615.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.