Home / 13,125,944.40-19,688,916.60-8,590,981.20

Finding the Fourth Proportional to 13,125,944.40, 19,688,916.60 and 8,590,981.20

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Solution

The fourth proportional to 13,125,944.40, 19,688,916.60 and 8,590,981.20 is: 12,886,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125,944.40 : 19,688,916.60 = 8,590,981.20 : x
  2. Step 2: Convert to fraction form
    13,125,944.40/19,688,916.60 = 8,590,981.20/x
  3. Step 3: Cross multiply
    13,125,944.40x = 19,688,916.60 × 8,590,981.20
  4. Step 4: Simplify right side
    13,125,944.40x = 169,147,112,358,967.91
  5. Step 5: Solve for x
    x = 169,147,112,358,967.91/13,125,944.40
  6. Step 6: Final answer
    x = 12,886,471.80

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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.