Home / 40,362,420,763.79-55,700,163,001.86-21,801,657,320.70

Finding the Fourth Proportional to 40,362,420,763.79, 55,700,163,001.86 and 21,801,657,320.70

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Solution

The fourth proportional to 40,362,420,763.79, 55,700,163,001.86 and 21,801,657,320.70 is: 30,086,299,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,362,420,763.79 : 55,700,163,001.86 = 21,801,657,320.70 : x
  2. Step 2: Convert to fraction form
    40,362,420,763.79/55,700,163,001.86 = 21,801,657,320.70/x
  3. Step 3: Cross multiply
    40,362,420,763.79x = 55,700,163,001.86 × 21,801,657,320.70
  4. Step 4: Simplify right side
    40,362,420,763.79x = 1,214,355,866,473,749,807,104
  5. Step 5: Solve for x
    x = 1,214,355,866,473,749,807,104/40,362,420,763.79
  6. Step 6: Final answer
    x = 30,086,299,173.69

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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.