Home / 353,712,172.60-530,064,374.10-260,871,398.20

Finding the Fourth Proportional to 353,712,172.60, 530,064,374.10 and 260,871,398.20

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Solution

The fourth proportional to 353,712,172.60, 530,064,374.10 and 260,871,398.20 is: 390,935,469.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,712,172.60 : 530,064,374.10 = 260,871,398.20 : x
  2. Step 2: Convert to fraction form
    353,712,172.60/530,064,374.10 = 260,871,398.20/x
  3. Step 3: Cross multiply
    353,712,172.60x = 530,064,374.10 × 260,871,398.20
  4. Step 4: Simplify right side
    353,712,172.60x = 138,278,634,407,474,864
  5. Step 5: Solve for x
    x = 138,278,634,407,474,864/353,712,172.60
  6. Step 6: Final answer
    x = 390,935,469.91

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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.