Home / 386,301,721.60-579,452,582.40-127,556,876.80

Finding the Fourth Proportional to 386,301,721.60, 579,452,582.40 and 127,556,876.80

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Solution

The fourth proportional to 386,301,721.60, 579,452,582.40 and 127,556,876.80 is: 191,335,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,301,721.60 : 579,452,582.40 = 127,556,876.80 : x
  2. Step 2: Convert to fraction form
    386,301,721.60/579,452,582.40 = 127,556,876.80/x
  3. Step 3: Cross multiply
    386,301,721.60x = 579,452,582.40 × 127,556,876.80
  4. Step 4: Simplify right side
    386,301,721.60x = 73,913,161,664,638,640
  5. Step 5: Solve for x
    x = 73,913,161,664,638,640/386,301,721.60
  6. Step 6: Final answer
    x = 191,335,315.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.