Home / 716,586,449,643.10-988,889,262,683.90-386,989,456,098.56

Finding the Fourth Proportional to 716,586,449,643.10, 988,889,262,683.90 and 386,989,456,098.56

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Solution

The fourth proportional to 716,586,449,643.10, 988,889,262,683.90 and 386,989,456,098.56 is: 534,045,428,989.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,586,449,643.10 : 988,889,262,683.90 = 386,989,456,098.56 : x
  2. Step 2: Convert to fraction form
    716,586,449,643.10/988,889,262,683.90 = 386,989,456,098.56/x
  3. Step 3: Cross multiply
    716,586,449,643.10x = 988,889,262,683.90 × 386,989,456,098.56
  4. Step 4: Simplify right side
    716,586,449,643.10x = 382,689,717,907,748,470,915,072
  5. Step 5: Solve for x
    x = 382,689,717,907,748,470,915,072/716,586,449,643.10
  6. Step 6: Final answer
    x = 534,045,428,989.55

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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.