Home / 1,286,774,421.52-1,929,280,466.89-655,284,097.89

Finding the Fourth Proportional to 1,286,774,421.52, 1,929,280,466.89 and 655,284,097.89

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Solution

The fourth proportional to 1,286,774,421.52, 1,929,280,466.89 and 655,284,097.89 is: 982,477,417.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,774,421.52 : 1,929,280,466.89 = 655,284,097.89 : x
  2. Step 2: Convert to fraction form
    1,286,774,421.52/1,929,280,466.89 = 655,284,097.89/x
  3. Step 3: Cross multiply
    1,286,774,421.52x = 1,929,280,466.89 × 655,284,097.89
  4. Step 4: Simplify right side
    1,286,774,421.52x = 1,264,226,810,322,811,648
  5. Step 5: Solve for x
    x = 1,264,226,810,322,811,648/1,286,774,421.52
  6. Step 6: Final answer
    x = 982,477,417.32

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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.