Home / 453,261,624.40-679,892,436.60-315,512,117.20

Finding the Fourth Proportional to 453,261,624.40, 679,892,436.60 and 315,512,117.20

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Solution

The fourth proportional to 453,261,624.40, 679,892,436.60 and 315,512,117.20 is: 473,268,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,261,624.40 : 679,892,436.60 = 315,512,117.20 : x
  2. Step 2: Convert to fraction form
    453,261,624.40/679,892,436.60 = 315,512,117.20/x
  3. Step 3: Cross multiply
    453,261,624.40x = 679,892,436.60 × 315,512,117.20
  4. Step 4: Simplify right side
    453,261,624.40x = 214,514,302,139,932,768
  5. Step 5: Solve for x
    x = 214,514,302,139,932,768/453,261,624.40
  6. Step 6: Final answer
    x = 473,268,175.80

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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.