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Finding the Third Proportional to 1,338,205,420 and 2,898,779,168

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Solution

The third proportional to 1,338,205,420 and 2,898,779,168 is: 6,279,245,726.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,205,420 : 2,898,779,168 = 2,898,779,168 : x
  2. Step 2: Convert to fraction form
    1,338,205,420/2,898,779,168 = 2,898,779,168/x
  3. Step 3: Cross multiply
    1,338,205,420x = 2,898,779,168 × 2,898,779,168
  4. Step 4: Simplify right side
    1,338,205,420x = 8,402,920,664,830,772,224
  5. Step 5: Solve for x
    x = 8,402,920,664,830,772,224/1,338,205,420
  6. Step 6: Final answer
    x = 6,279,245,726.59

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.