Home / 1,440,056,628-1,987,278,214.68-780,006,906

Finding the Fourth Proportional to 1,440,056,628, 1,987,278,214.68 and 780,006,906

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Solution

The fourth proportional to 1,440,056,628, 1,987,278,214.68 and 780,006,906 is: 1,076,409,567.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,056,628 : 1,987,278,214.68 = 780,006,906 : x
  2. Step 2: Convert to fraction form
    1,440,056,628/1,987,278,214.68 = 780,006,906/x
  3. Step 3: Cross multiply
    1,440,056,628x = 1,987,278,214.68 × 780,006,906
  4. Step 4: Simplify right side
    1,440,056,628x = 1,550,090,731,593,750,528
  5. Step 5: Solve for x
    x = 1,550,090,731,593,750,528/1,440,056,628
  6. Step 6: Final answer
    x = 1,076,409,567.13

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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.