Home / 19,688,913.60-29,533,370.40-12,886,468.80

Finding the Fourth Proportional to 19,688,913.60, 29,533,370.40 and 12,886,468.80

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Solution

The fourth proportional to 19,688,913.60, 29,533,370.40 and 12,886,468.80 is: 19,329,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688,913.60 : 29,533,370.40 = 12,886,468.80 : x
  2. Step 2: Convert to fraction form
    19,688,913.60/29,533,370.40 = 12,886,468.80/x
  3. Step 3: Cross multiply
    19,688,913.60x = 29,533,370.40 × 12,886,468.80
  4. Step 4: Simplify right side
    19,688,913.60x = 380,580,856,218,443.50
  5. Step 5: Solve for x
    x = 380,580,856,218,443.50/19,688,913.60
  6. Step 6: Final answer
    x = 19,329,703.20

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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.