Home / 780,109,218.04-1,076,550,461.81-427,677,641.95

Finding the Fourth Proportional to 780,109,218.04, 1,076,550,461.81 and 427,677,641.95

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Solution

The fourth proportional to 780,109,218.04, 1,076,550,461.81 and 427,677,641.95 is: 590,195,003.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,109,218.04 : 1,076,550,461.81 = 427,677,641.95 : x
  2. Step 2: Convert to fraction form
    780,109,218.04/1,076,550,461.81 = 427,677,641.95/x
  3. Step 3: Cross multiply
    780,109,218.04x = 1,076,550,461.81 × 427,677,641.95
  4. Step 4: Simplify right side
    780,109,218.04x = 460,416,562,947,084,288
  5. Step 5: Solve for x
    x = 460,416,562,947,084,288/780,109,218.04
  6. Step 6: Final answer
    x = 590,195,003.85

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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.