Home / 519,595,068.63-779,648,678.78-243,264,994.23

Finding the Fourth Proportional to 519,595,068.63, 779,648,678.78 and 243,264,994.23

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Solution

The fourth proportional to 519,595,068.63, 779,648,678.78 and 243,264,994.23 is: 365,017,381.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,595,068.63 : 779,648,678.78 = 243,264,994.23 : x
  2. Step 2: Convert to fraction form
    519,595,068.63/779,648,678.78 = 243,264,994.23/x
  3. Step 3: Cross multiply
    519,595,068.63x = 779,648,678.78 × 243,264,994.23
  4. Step 4: Simplify right side
    519,595,068.63x = 189,661,231,347,918,304
  5. Step 5: Solve for x
    x = 189,661,231,347,918,304/519,595,068.63
  6. Step 6: Final answer
    x = 365,017,381.41

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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.