Home / 156,970,434.40-235,539,632.40-66,103,208.80

Finding the Fourth Proportional to 156,970,434.40, 235,539,632.40 and 66,103,208.80

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Solution

The fourth proportional to 156,970,434.40, 235,539,632.40 and 66,103,208.80 is: 99,190,179.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,970,434.40 : 235,539,632.40 = 66,103,208.80 : x
  2. Step 2: Convert to fraction form
    156,970,434.40/235,539,632.40 = 66,103,208.80/x
  3. Step 3: Cross multiply
    156,970,434.40x = 235,539,632.40 × 66,103,208.80
  4. Step 4: Simplify right side
    156,970,434.40x = 15,569,925,501,212,444
  5. Step 5: Solve for x
    x = 15,569,925,501,212,444/156,970,434.40
  6. Step 6: Final answer
    x = 99,190,179.10

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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.