Home / 15,726,650,015.70-21,702,648,045.15-8,590,068,378.90

Finding the Fourth Proportional to 15,726,650,015.70, 21,702,648,045.15 and 8,590,068,378.90

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Solution

The fourth proportional to 15,726,650,015.70, 21,702,648,045.15 and 8,590,068,378.90 is: 11,854,223,914.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,726,650,015.70 : 21,702,648,045.15 = 8,590,068,378.90 : x
  2. Step 2: Convert to fraction form
    15,726,650,015.70/21,702,648,045.15 = 8,590,068,378.90/x
  3. Step 3: Cross multiply
    15,726,650,015.70x = 21,702,648,045.15 × 8,590,068,378.90
  4. Step 4: Simplify right side
    15,726,650,015.70x = 186,427,230,711,038,935,040
  5. Step 5: Solve for x
    x = 186,427,230,711,038,935,040/15,726,650,015.70
  6. Step 6: Final answer
    x = 11,854,223,914.50

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1.5x scale

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.