Home / 1,329,702,435.60-1,994,553,653.40-778,704,406.80

Finding the Fourth Proportional to 1,329,702,435.60, 1,994,553,653.40 and 778,704,406.80

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Solution

The fourth proportional to 1,329,702,435.60, 1,994,553,653.40 and 778,704,406.80 is: 1,168,056,610.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,702,435.60 : 1,994,553,653.40 = 778,704,406.80 : x
  2. Step 2: Convert to fraction form
    1,329,702,435.60/1,994,553,653.40 = 778,704,406.80/x
  3. Step 3: Cross multiply
    1,329,702,435.60x = 1,994,553,653.40 × 778,704,406.80
  4. Step 4: Simplify right side
    1,329,702,435.60x = 1,553,167,719,501,619,712
  5. Step 5: Solve for x
    x = 1,553,167,719,501,619,712/1,329,702,435.60
  6. Step 6: Final answer
    x = 1,168,056,610.20

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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.