Home / 668,157,818.09-922,078,757.16-385,895,015.33

Finding the Fourth Proportional to 668,157,818.09, 922,078,757.16 and 385,895,015.33

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Solution

The fourth proportional to 668,157,818.09, 922,078,757.16 and 385,895,015.33 is: 532,547,231.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,157,818.09 : 922,078,757.16 = 385,895,015.33 : x
  2. Step 2: Convert to fraction form
    668,157,818.09/922,078,757.16 = 385,895,015.33/x
  3. Step 3: Cross multiply
    668,157,818.09x = 922,078,757.16 × 385,895,015.33
  4. Step 4: Simplify right side
    668,157,818.09x = 355,825,596,125,115,136
  5. Step 5: Solve for x
    x = 355,825,596,125,115,136/668,157,818.09
  6. Step 6: Final answer
    x = 532,547,231.35

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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.