Home / 120,838,200.80-180,832,148.40-110,634,533.60

Finding the Fourth Proportional to 120,838,200.80, 180,832,148.40 and 110,634,533.60

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Solution

The fourth proportional to 120,838,200.80, 180,832,148.40 and 110,634,533.60 is: 165,562,547.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,838,200.80 : 180,832,148.40 = 110,634,533.60 : x
  2. Step 2: Convert to fraction form
    120,838,200.80/180,832,148.40 = 110,634,533.60/x
  3. Step 3: Cross multiply
    120,838,200.80x = 180,832,148.40 × 110,634,533.60
  4. Step 4: Simplify right side
    120,838,200.80x = 20,006,280,398,119,984
  5. Step 5: Solve for x
    x = 20,006,280,398,119,984/120,838,200.80
  6. Step 6: Final answer
    x = 165,562,547.82

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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.