Home / 1,422,781,969.50-1,963,439,117.91-771,616,273.50

Finding the Fourth Proportional to 1,422,781,969.50, 1,963,439,117.91 and 771,616,273.50

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Solution

The fourth proportional to 1,422,781,969.50, 1,963,439,117.91 and 771,616,273.50 is: 1,064,830,457.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,781,969.50 : 1,963,439,117.91 = 771,616,273.50 : x
  2. Step 2: Convert to fraction form
    1,422,781,969.50/1,963,439,117.91 = 771,616,273.50/x
  3. Step 3: Cross multiply
    1,422,781,969.50x = 1,963,439,117.91 × 771,616,273.50
  4. Step 4: Simplify right side
    1,422,781,969.50x = 1,515,021,575,405,841,408
  5. Step 5: Solve for x
    x = 1,515,021,575,405,841,408/1,422,781,969.50
  6. Step 6: Final answer
    x = 1,064,830,457.43

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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.