Home / 989,009,862.65-1,483,514,793.98-252,078,342.65

Finding the Fourth Proportional to 989,009,862.65, 1,483,514,793.98 and 252,078,342.65

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Solution

The fourth proportional to 989,009,862.65, 1,483,514,793.98 and 252,078,342.65 is: 378,117,513.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,009,862.65 : 1,483,514,793.98 = 252,078,342.65 : x
  2. Step 2: Convert to fraction form
    989,009,862.65/1,483,514,793.98 = 252,078,342.65/x
  3. Step 3: Cross multiply
    989,009,862.65x = 1,483,514,793.98 × 252,078,342.65
  4. Step 4: Simplify right side
    989,009,862.65x = 373,961,950,561,974,208
  5. Step 5: Solve for x
    x = 373,961,950,561,974,208/989,009,862.65
  6. Step 6: Final answer
    x = 378,117,513.98

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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.