Home / 910,673,839.32-1,256,733,908.98-492,986,124.63

Finding the Fourth Proportional to 910,673,839.32, 1,256,733,908.98 and 492,986,124.63

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Solution

The fourth proportional to 910,673,839.32, 1,256,733,908.98 and 492,986,124.63 is: 680,323,023.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,673,839.32 : 1,256,733,908.98 = 492,986,124.63 : x
  2. Step 2: Convert to fraction form
    910,673,839.32/1,256,733,908.98 = 492,986,124.63/x
  3. Step 3: Cross multiply
    910,673,839.32x = 1,256,733,908.98 × 492,986,124.63
  4. Step 4: Simplify right side
    910,673,839.32x = 619,552,379,472,877,696
  5. Step 5: Solve for x
    x = 619,552,379,472,877,696/910,673,839.32
  6. Step 6: Final answer
    x = 680,323,023.15

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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.