Home / 85,762,777.86-128,668,180.05-34,680,668.94

Finding the Fourth Proportional to 85,762,777.86, 128,668,180.05 and 34,680,668.94

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Solution

The fourth proportional to 85,762,777.86, 128,668,180.05 and 34,680,668.94 is: 52,030,713.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,762,777.86 : 128,668,180.05 = 34,680,668.94 : x
  2. Step 2: Convert to fraction form
    85,762,777.86/128,668,180.05 = 34,680,668.94/x
  3. Step 3: Cross multiply
    85,762,777.86x = 128,668,180.05 × 34,680,668.94
  4. Step 4: Simplify right side
    85,762,777.86x = 4,462,298,555,426,362
  5. Step 5: Solve for x
    x = 4,462,298,555,426,362/85,762,777.86
  6. Step 6: Final answer
    x = 52,030,713.87

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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.