Home / 156,634,152.36-216,142,477.74-90,558,909.54

Finding the Fourth Proportional to 156,634,152.36, 216,142,477.74 and 90,558,909.54

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Solution

The fourth proportional to 156,634,152.36, 216,142,477.74 and 90,558,909.54 is: 124,963,980.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,634,152.36 : 216,142,477.74 = 90,558,909.54 : x
  2. Step 2: Convert to fraction form
    156,634,152.36/216,142,477.74 = 90,558,909.54/x
  3. Step 3: Cross multiply
    156,634,152.36x = 216,142,477.74 × 90,558,909.54
  4. Step 4: Simplify right side
    156,634,152.36x = 19,573,627,089,408,124
  5. Step 5: Solve for x
    x = 19,573,627,089,408,124/156,634,152.36
  6. Step 6: Final answer
    x = 124,963,980.04

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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.