Home / 134,971,782.30-186,208,327.98-78,447,136.50

Finding the Fourth Proportional to 134,971,782.30, 186,208,327.98 and 78,447,136.50

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Solution

The fourth proportional to 134,971,782.30, 186,208,327.98 and 78,447,136.50 is: 108,226,400.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,971,782.30 : 186,208,327.98 = 78,447,136.50 : x
  2. Step 2: Convert to fraction form
    134,971,782.30/186,208,327.98 = 78,447,136.50/x
  3. Step 3: Cross multiply
    134,971,782.30x = 186,208,327.98 × 78,447,136.50
  4. Step 4: Simplify right side
    134,971,782.30x = 14,607,510,122,483,828
  5. Step 5: Solve for x
    x = 14,607,510,122,483,828/134,971,782.30
  6. Step 6: Final answer
    x = 108,226,400.17

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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.