Home / 638,616,005.40-957,924,008.10-294,242,237.40

Finding the Fourth Proportional to 638,616,005.40, 957,924,008.10 and 294,242,237.40

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Solution

The fourth proportional to 638,616,005.40, 957,924,008.10 and 294,242,237.40 is: 441,363,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,616,005.40 : 957,924,008.10 = 294,242,237.40 : x
  2. Step 2: Convert to fraction form
    638,616,005.40/957,924,008.10 = 294,242,237.40/x
  3. Step 3: Cross multiply
    638,616,005.40x = 957,924,008.10 × 294,242,237.40
  4. Step 4: Simplify right side
    638,616,005.40x = 281,861,703,402,519,712
  5. Step 5: Solve for x
    x = 281,861,703,402,519,712/638,616,005.40
  6. Step 6: Final answer
    x = 441,363,356.10

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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.