Home / 76,789,646.60-115,184,469.90-56,382,312.20

Finding the Fourth Proportional to 76,789,646.60, 115,184,469.90 and 56,382,312.20

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Solution

The fourth proportional to 76,789,646.60, 115,184,469.90 and 56,382,312.20 is: 84,573,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,789,646.60 : 115,184,469.90 = 56,382,312.20 : x
  2. Step 2: Convert to fraction form
    76,789,646.60/115,184,469.90 = 56,382,312.20/x
  3. Step 3: Cross multiply
    76,789,646.60x = 115,184,469.90 × 56,382,312.20
  4. Step 4: Simplify right side
    76,789,646.60x = 6,494,366,742,493,303
  5. Step 5: Solve for x
    x = 6,494,366,742,493,303/76,789,646.60
  6. Step 6: Final answer
    x = 84,573,468.30

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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.