Home / 78,614,712,150.80-117,922,068,226.20-64,656,095,421.20

Finding the Fourth Proportional to 78,614,712,150.80, 117,922,068,226.20 and 64,656,095,421.20

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Solution

The fourth proportional to 78,614,712,150.80, 117,922,068,226.20 and 64,656,095,421.20 is: 96,984,143,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,614,712,150.80 : 117,922,068,226.20 = 64,656,095,421.20 : x
  2. Step 2: Convert to fraction form
    78,614,712,150.80/117,922,068,226.20 = 64,656,095,421.20/x
  3. Step 3: Cross multiply
    78,614,712,150.80x = 117,922,068,226.20 × 64,656,095,421.20
  4. Step 4: Simplify right side
    78,614,712,150.80x = 7,624,380,495,498,443,751,424
  5. Step 5: Solve for x
    x = 7,624,380,495,498,443,751,424/78,614,712,150.80
  6. Step 6: Final answer
    x = 96,984,143,131.80

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1.5x scale

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.