Home / 64,742,811.20-97,114,216.80-56,780,187.20

Finding the Fourth Proportional to 64,742,811.20, 97,114,216.80 and 56,780,187.20

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Solution

The fourth proportional to 64,742,811.20, 97,114,216.80 and 56,780,187.20 is: 85,170,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,742,811.20 : 97,114,216.80 = 56,780,187.20 : x
  2. Step 2: Convert to fraction form
    64,742,811.20/97,114,216.80 = 56,780,187.20/x
  3. Step 3: Cross multiply
    64,742,811.20x = 97,114,216.80 × 56,780,187.20
  4. Step 4: Simplify right side
    64,742,811.20x = 5,514,163,409,685,385
  5. Step 5: Solve for x
    x = 5,514,163,409,685,385/64,742,811.20
  6. Step 6: Final answer
    x = 85,170,280.80

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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.