Home / 256,360,389.83-353,777,696.95-138,885,720.07

Finding the Fourth Proportional to 256,360,389.83, 353,777,696.95 and 138,885,720.07

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Solution

The fourth proportional to 256,360,389.83, 353,777,696.95 and 138,885,720.07 is: 191,662,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,360,389.83 : 353,777,696.95 = 138,885,720.07 : x
  2. Step 2: Convert to fraction form
    256,360,389.83/353,777,696.95 = 138,885,720.07/x
  3. Step 3: Cross multiply
    256,360,389.83x = 353,777,696.95 × 138,885,720.07
  4. Step 4: Simplify right side
    256,360,389.83x = 49,134,670,186,838,280
  5. Step 5: Solve for x
    x = 49,134,670,186,838,280/256,360,389.83
  6. Step 6: Final answer
    x = 191,662,488.18

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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.