Home / 497,957,738.55-687,242,213.15-289,113,881.19

Finding the Fourth Proportional to 497,957,738.55, 687,242,213.15 and 289,113,881.19

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Solution

The fourth proportional to 497,957,738.55, 687,242,213.15 and 289,113,881.19 is: 399,012,302.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,957,738.55 : 687,242,213.15 = 289,113,881.19 : x
  2. Step 2: Convert to fraction form
    497,957,738.55/687,242,213.15 = 289,113,881.19/x
  3. Step 3: Cross multiply
    497,957,738.55x = 687,242,213.15 × 289,113,881.19
  4. Step 4: Simplify right side
    497,957,738.55x = 198,691,263,559,956,192
  5. Step 5: Solve for x
    x = 198,691,263,559,956,192/497,957,738.55
  6. Step 6: Final answer
    x = 399,012,302.00

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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.