Home / 86,643,083.52-129,963,624.21-21,064,592.70

Finding the Fourth Proportional to 86,643,083.52, 129,963,624.21 and 21,064,592.70

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Solution

The fourth proportional to 86,643,083.52, 129,963,624.21 and 21,064,592.70 is: 31,596,645.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,643,083.52 : 129,963,624.21 = 21,064,592.70 : x
  2. Step 2: Convert to fraction form
    86,643,083.52/129,963,624.21 = 21,064,592.70/x
  3. Step 3: Cross multiply
    86,643,083.52x = 129,963,624.21 × 21,064,592.70
  4. Step 4: Simplify right side
    86,643,083.52x = 2,737,630,809,799,509
  5. Step 5: Solve for x
    x = 2,737,630,809,799,509/86,643,083.52
  6. Step 6: Final answer
    x = 31,596,645.67

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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.