Home / 21,205,564,259.85-29,263,767,068.39-11,689,906,964.49

Finding the Fourth Proportional to 21,205,564,259.85, 29,263,767,068.39 and 11,689,906,964.49

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Solution

The fourth proportional to 21,205,564,259.85, 29,263,767,068.39 and 11,689,906,964.49 is: 16,132,120,337.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205,564,259.85 : 29,263,767,068.39 = 11,689,906,964.49 : x
  2. Step 2: Convert to fraction form
    21,205,564,259.85/29,263,767,068.39 = 11,689,906,964.49/x
  3. Step 3: Cross multiply
    21,205,564,259.85x = 29,263,767,068.39 × 11,689,906,964.49
  4. Step 4: Simplify right side
    21,205,564,259.85x = 342,090,714,459,938,619,392
  5. Step 5: Solve for x
    x = 342,090,714,459,938,619,392/21,205,564,259.85
  6. Step 6: Final answer
    x = 16,132,120,337.29

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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.