Home / 1,286,774,420.52-1,929,280,465.40-655,284,096.89

Finding the Fourth Proportional to 1,286,774,420.52, 1,929,280,465.40 and 655,284,096.89

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Solution

The fourth proportional to 1,286,774,420.52, 1,929,280,465.40 and 655,284,096.89 is: 982,477,415.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,774,420.52 : 1,929,280,465.40 = 655,284,096.89 : x
  2. Step 2: Convert to fraction form
    1,286,774,420.52/1,929,280,465.40 = 655,284,096.89/x
  3. Step 3: Cross multiply
    1,286,774,420.52x = 1,929,280,465.40 × 655,284,096.89
  4. Step 4: Simplify right side
    1,286,774,420.52x = 1,264,226,807,404,235,008
  5. Step 5: Solve for x
    x = 1,264,226,807,404,235,008/1,286,774,420.52
  6. Step 6: Final answer
    x = 982,477,415.81

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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.