Home / 991,096,927.79-1,486,327,120.00-326,961,656.51

Finding the Fourth Proportional to 991,096,927.79, 1,486,327,120.00 and 326,961,656.51

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Solution

The fourth proportional to 991,096,927.79, 1,486,327,120.00 and 326,961,656.51 is: 490,337,487.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,096,927.79 : 1,486,327,120.00 = 326,961,656.51 : x
  2. Step 2: Convert to fraction form
    991,096,927.79/1,486,327,120.00 = 326,961,656.51/x
  3. Step 3: Cross multiply
    991,096,927.79x = 1,486,327,120.00 × 326,961,656.51
  4. Step 4: Simplify right side
    991,096,927.79x = 485,971,977,262,688,512
  5. Step 5: Solve for x
    x = 485,971,977,262,688,512/991,096,927.79
  6. Step 6: Final answer
    x = 490,337,487.32

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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.