Home / 155,060,417.76-213,984,811.52-85,448,289.84

Finding the Fourth Proportional to 155,060,417.76, 213,984,811.52 and 85,448,289.84

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Solution

The fourth proportional to 155,060,417.76, 213,984,811.52 and 85,448,289.84 is: 117,919,430.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,060,417.76 : 213,984,811.52 = 85,448,289.84 : x
  2. Step 2: Convert to fraction form
    155,060,417.76/213,984,811.52 = 85,448,289.84/x
  3. Step 3: Cross multiply
    155,060,417.76x = 213,984,811.52 × 85,448,289.84
  4. Step 4: Simplify right side
    155,060,417.76x = 18,284,636,196,118,732
  5. Step 5: Solve for x
    x = 18,284,636,196,118,732/155,060,417.76
  6. Step 6: Final answer
    x = 117,919,430.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.