Home / 353,712,125.10-530,064,302.85-260,871,350.70

Finding the Fourth Proportional to 353,712,125.10, 530,064,302.85 and 260,871,350.70

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Solution

The fourth proportional to 353,712,125.10, 530,064,302.85 and 260,871,350.70 is: 390,935,398.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,712,125.10 : 530,064,302.85 = 260,871,350.70 : x
  2. Step 2: Convert to fraction form
    353,712,125.10/530,064,302.85 = 260,871,350.70/x
  3. Step 3: Cross multiply
    353,712,125.10x = 530,064,302.85 × 260,871,350.70
  4. Step 4: Simplify right side
    353,712,125.10x = 138,278,590,642,333,360
  5. Step 5: Solve for x
    x = 138,278,590,642,333,360/353,712,125.10
  6. Step 6: Final answer
    x = 390,935,398.68

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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.