Home / 525,242,459.52-724,924,600.56-305,353,431.36

Finding the Fourth Proportional to 525,242,459.52, 724,924,600.56 and 305,353,431.36

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Solution

The fourth proportional to 525,242,459.52, 724,924,600.56 and 305,353,431.36 is: 421,440,061.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,242,459.52 : 724,924,600.56 = 305,353,431.36 : x
  2. Step 2: Convert to fraction form
    525,242,459.52/724,924,600.56 = 305,353,431.36/x
  3. Step 3: Cross multiply
    525,242,459.52x = 724,924,600.56 × 305,353,431.36
  4. Step 4: Simplify right side
    525,242,459.52x = 221,358,214,258,273,376
  5. Step 5: Solve for x
    x = 221,358,214,258,273,376/525,242,459.52
  6. Step 6: Final answer
    x = 421,440,061.15

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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.