Home / 427,136,726.40-640,705,089.60-232,973,116.80

Finding the Fourth Proportional to 427,136,726.40, 640,705,089.60 and 232,973,116.80

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Solution

The fourth proportional to 427,136,726.40, 640,705,089.60 and 232,973,116.80 is: 349,459,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,136,726.40 : 640,705,089.60 = 232,973,116.80 : x
  2. Step 2: Convert to fraction form
    427,136,726.40/640,705,089.60 = 232,973,116.80/x
  3. Step 3: Cross multiply
    427,136,726.40x = 640,705,089.60 × 232,973,116.80
  4. Step 4: Simplify right side
    427,136,726.40x = 149,267,061,673,735,264
  5. Step 5: Solve for x
    x = 149,267,061,673,735,264/427,136,726.40
  6. Step 6: Final answer
    x = 349,459,675.20

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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.