Home / 787,973,612.80-1,181,960,419.20-461,456,262.40

Finding the Fourth Proportional to 787,973,612.80, 1,181,960,419.20 and 461,456,262.40

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Solution

The fourth proportional to 787,973,612.80, 1,181,960,419.20 and 461,456,262.40 is: 692,184,393.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,973,612.80 : 1,181,960,419.20 = 461,456,262.40 : x
  2. Step 2: Convert to fraction form
    787,973,612.80/1,181,960,419.20 = 461,456,262.40/x
  3. Step 3: Cross multiply
    787,973,612.80x = 1,181,960,419.20 × 461,456,262.40
  4. Step 4: Simplify right side
    787,973,612.80x = 545,423,037,348,769,216
  5. Step 5: Solve for x
    x = 545,423,037,348,769,216/787,973,612.80
  6. Step 6: Final answer
    x = 692,184,393.60

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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.