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Finding the Fourth Proportional to 710,579,603.07, 980,534,044.71 and 393,033,015.63

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Solution

The fourth proportional to 710,579,603.07, 980,534,044.71 and 393,033,015.63 is: 542,349,162.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,579,603.07 : 980,534,044.71 = 393,033,015.63 : x
  2. Step 2: Convert to fraction form
    710,579,603.07/980,534,044.71 = 393,033,015.63/x
  3. Step 3: Cross multiply
    710,579,603.07x = 980,534,044.71 × 393,033,015.63
  4. Step 4: Simplify right side
    710,579,603.07x = 385,382,252,520,252,544
  5. Step 5: Solve for x
    x = 385,382,252,520,252,544/710,579,603.07
  6. Step 6: Final answer
    x = 542,349,162.37

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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.