Home / 413,584,370,480.72-620,565,054,038.52-212,267,478,919.88

Finding the Fourth Proportional to 413,584,370,480.72, 620,565,054,038.52 and 212,267,478,919.88

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Solution

The fourth proportional to 413,584,370,480.72, 620,565,054,038.52 and 212,267,478,919.88 is: 318,497,962,999.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,584,370,480.72 : 620,565,054,038.52 = 212,267,478,919.88 : x
  2. Step 2: Convert to fraction form
    413,584,370,480.72/620,565,054,038.52 = 212,267,478,919.88/x
  3. Step 3: Cross multiply
    413,584,370,480.72x = 620,565,054,038.52 × 212,267,478,919.88
  4. Step 4: Simplify right side
    413,584,370,480.72x = 131,725,779,526,535,742,488,576
  5. Step 5: Solve for x
    x = 131,725,779,526,535,742,488,576/413,584,370,480.72
  6. Step 6: Final answer
    x = 318,497,962,999.49

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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.