Home / 39,649,353,421.81-59,456,577,595.70-21,012,482,826.85

Finding the Fourth Proportional to 39,649,353,421.81, 59,456,577,595.70 and 21,012,482,826.85

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Solution

The fourth proportional to 39,649,353,421.81, 59,456,577,595.70 and 21,012,482,826.85 is: 31,509,475,132.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,649,353,421.81 : 59,456,577,595.70 = 21,012,482,826.85 : x
  2. Step 2: Convert to fraction form
    39,649,353,421.81/59,456,577,595.70 = 21,012,482,826.85/x
  3. Step 3: Cross multiply
    39,649,353,421.81x = 59,456,577,595.70 × 21,012,482,826.85
  4. Step 4: Simplify right side
    39,649,353,421.81x = 1,249,330,315,672,861,016,064
  5. Step 5: Solve for x
    x = 1,249,330,315,672,861,016,064/39,649,353,421.81
  6. Step 6: Final answer
    x = 31,509,475,132.72

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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.