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Finding the Fourth Proportional to 305,774,004.70, 429,292,930.10 and 305,774,004.70

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Solution

The fourth proportional to 305,774,004.70, 429,292,930.10 and 305,774,004.70 is: 429,292,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,774,004.70 : 429,292,930.10 = 305,774,004.70 : x
  2. Step 2: Convert to fraction form
    305,774,004.70/429,292,930.10 = 305,774,004.70/x
  3. Step 3: Cross multiply
    305,774,004.70x = 429,292,930.10 × 305,774,004.70
  4. Step 4: Simplify right side
    305,774,004.70x = 131,266,618,426,074,176
  5. Step 5: Solve for x
    x = 131,266,618,426,074,176/305,774,004.70
  6. Step 6: Final answer
    x = 429,292,930.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.