Home / 687,831,833,076.86-949,210,806,687.68-379,176,417,078.01

Finding the Fourth Proportional to 687,831,833,076.86, 949,210,806,687.68 and 379,176,417,078.01

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Solution

The fourth proportional to 687,831,833,076.86, 949,210,806,687.68 and 379,176,417,078.01 is: 523,265,041,574.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,831,833,076.86 : 949,210,806,687.68 = 379,176,417,078.01 : x
  2. Step 2: Convert to fraction form
    687,831,833,076.86/949,210,806,687.68 = 379,176,417,078.01/x
  3. Step 3: Cross multiply
    687,831,833,076.86x = 949,210,806,687.68 × 379,176,417,078.01
  4. Step 4: Simplify right side
    687,831,833,076.86x = 359,918,352,731,562,116,644,864
  5. Step 5: Solve for x
    x = 359,918,352,731,562,116,644,864/687,831,833,076.86
  6. Step 6: Final answer
    x = 523,265,041,574.99

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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.