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Finding the Fourth Proportional to 708,557,021.40, 976,939,978.14 and 582,669,283.80

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Solution

The fourth proportional to 708,557,021.40, 976,939,978.14 and 582,669,283.80 is: 803,369,242.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,557,021.40 : 976,939,978.14 = 582,669,283.80 : x
  2. Step 2: Convert to fraction form
    708,557,021.40/976,939,978.14 = 582,669,283.80/x
  3. Step 3: Cross multiply
    708,557,021.40x = 976,939,978.14 × 582,669,283.80
  4. Step 4: Simplify right side
    708,557,021.40x = 569,232,917,378,421,376
  5. Step 5: Solve for x
    x = 569,232,917,378,421,376/708,557,021.40
  6. Step 6: Final answer
    x = 803,369,242.26

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1.5x scale

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.