Home / 1,422,781,971-1,963,439,119.98-771,616,275

Finding the Fourth Proportional to 1,422,781,971, 1,963,439,119.98 and 771,616,275

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Solution

The fourth proportional to 1,422,781,971, 1,963,439,119.98 and 771,616,275 is: 1,064,830,459.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,781,971 : 1,963,439,119.98 = 771,616,275 : x
  2. Step 2: Convert to fraction form
    1,422,781,971/1,963,439,119.98 = 771,616,275/x
  3. Step 3: Cross multiply
    1,422,781,971x = 1,963,439,119.98 × 771,616,275
  4. Step 4: Simplify right side
    1,422,781,971x = 1,515,021,579,948,245,760
  5. Step 5: Solve for x
    x = 1,515,021,579,948,245,760/1,422,781,971
  6. Step 6: Final answer
    x = 1,064,830,459.50

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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.