Home / 405,136,557.78-558,779,982.03-348,717,328.05

Finding the Fourth Proportional to 405,136,557.78, 558,779,982.03 and 348,717,328.05

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Solution

The fourth proportional to 405,136,557.78, 558,779,982.03 and 348,717,328.05 is: 480,964,402.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,136,557.78 : 558,779,982.03 = 348,717,328.05 : x
  2. Step 2: Convert to fraction form
    405,136,557.78/558,779,982.03 = 348,717,328.05/x
  3. Step 3: Cross multiply
    405,136,557.78x = 558,779,982.03 × 348,717,328.05
  4. Step 4: Simplify right side
    405,136,557.78x = 194,856,262,301,328,608
  5. Step 5: Solve for x
    x = 194,856,262,301,328,608/405,136,557.78
  6. Step 6: Final answer
    x = 480,964,402.15

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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.