Home / 620,273,114.70-930,409,672.05-390,690,602.70

Finding the Fourth Proportional to 620,273,114.70, 930,409,672.05 and 390,690,602.70

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Solution

The fourth proportional to 620,273,114.70, 930,409,672.05 and 390,690,602.70 is: 586,035,904.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,273,114.70 : 930,409,672.05 = 390,690,602.70 : x
  2. Step 2: Convert to fraction form
    620,273,114.70/930,409,672.05 = 390,690,602.70/x
  3. Step 3: Cross multiply
    620,273,114.70x = 930,409,672.05 × 390,690,602.70
  4. Step 4: Simplify right side
    620,273,114.70x = 363,502,315,531,123,840
  5. Step 5: Solve for x
    x = 363,502,315,531,123,840/620,273,114.70
  6. Step 6: Final answer
    x = 586,035,904.05

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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.