Home / 618,821,094.96-853,989,263.76-340,369,925.28

Finding the Fourth Proportional to 618,821,094.96, 853,989,263.76 and 340,369,925.28

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Solution

The fourth proportional to 618,821,094.96, 853,989,263.76 and 340,369,925.28 is: 469,719,381.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,821,094.96 : 853,989,263.76 = 340,369,925.28 : x
  2. Step 2: Convert to fraction form
    618,821,094.96/853,989,263.76 = 340,369,925.28/x
  3. Step 3: Cross multiply
    618,821,094.96x = 853,989,263.76 × 340,369,925.28
  4. Step 4: Simplify right side
    618,821,094.96x = 290,672,261,895,913,408
  5. Step 5: Solve for x
    x = 290,672,261,895,913,408/618,821,094.96
  6. Step 6: Final answer
    x = 469,719,381.36

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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.