Home / 1,422,781,970.50-1,963,439,119.29-771,616,274.50

Finding the Fourth Proportional to 1,422,781,970.50, 1,963,439,119.29 and 771,616,274.50

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Solution

The fourth proportional to 1,422,781,970.50, 1,963,439,119.29 and 771,616,274.50 is: 1,064,830,458.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,781,970.50 : 1,963,439,119.29 = 771,616,274.50 : x
  2. Step 2: Convert to fraction form
    1,422,781,970.50/1,963,439,119.29 = 771,616,274.50/x
  3. Step 3: Cross multiply
    1,422,781,970.50x = 1,963,439,119.29 × 771,616,274.50
  4. Step 4: Simplify right side
    1,422,781,970.50x = 1,515,021,578,434,110,976
  5. Step 5: Solve for x
    x = 1,515,021,578,434,110,976/1,422,781,970.50
  6. Step 6: Final answer
    x = 1,064,830,458.81

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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.