Home / 687,831,833,079.36-949,210,806,691.11-379,176,417,080.52

Finding the Fourth Proportional to 687,831,833,079.36, 949,210,806,691.11 and 379,176,417,080.52

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Solution

The fourth proportional to 687,831,833,079.36, 949,210,806,691.11 and 379,176,417,080.52 is: 523,265,041,578.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,831,833,079.36 : 949,210,806,691.11 = 379,176,417,080.52 : x
  2. Step 2: Convert to fraction form
    687,831,833,079.36/949,210,806,691.11 = 379,176,417,080.52/x
  3. Step 3: Cross multiply
    687,831,833,079.36x = 949,210,806,691.11 × 379,176,417,080.52
  4. Step 4: Simplify right side
    687,831,833,079.36x = 359,918,352,735,245,185,318,912
  5. Step 5: Solve for x
    x = 359,918,352,735,245,185,318,912/687,831,833,079.36
  6. Step 6: Final answer
    x = 523,265,041,578.44

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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.