Home / 712,638,021.60-999,053,719.20-712,638,021.60

Finding the Fourth Proportional to 712,638,021.60, 999,053,719.20 and 712,638,021.60

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Solution

The fourth proportional to 712,638,021.60, 999,053,719.20 and 712,638,021.60 is: 999,053,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,638,021.60 : 999,053,719.20 = 712,638,021.60 : x
  2. Step 2: Convert to fraction form
    712,638,021.60/999,053,719.20 = 712,638,021.60/x
  3. Step 3: Cross multiply
    712,638,021.60x = 999,053,719.20 × 712,638,021.60
  4. Step 4: Simplify right side
    712,638,021.60x = 711,963,665,922,809,984
  5. Step 5: Solve for x
    x = 711,963,665,922,809,984/712,638,021.60
  6. Step 6: Final answer
    x = 999,053,719.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.