Home / 112,013,131.60-168,019,697.40-48,312,139.60

Finding the Fourth Proportional to 112,013,131.60, 168,019,697.40 and 48,312,139.60

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Solution

The fourth proportional to 112,013,131.60, 168,019,697.40 and 48,312,139.60 is: 72,468,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,013,131.60 : 168,019,697.40 = 48,312,139.60 : x
  2. Step 2: Convert to fraction form
    112,013,131.60/168,019,697.40 = 48,312,139.60/x
  3. Step 3: Cross multiply
    112,013,131.60x = 168,019,697.40 × 48,312,139.60
  4. Step 4: Simplify right side
    112,013,131.60x = 8,117,391,076,338,558
  5. Step 5: Solve for x
    x = 8,117,391,076,338,558/112,013,131.60
  6. Step 6: Final answer
    x = 72,468,209.40

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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.