Home / 8,910,872,411.92-12,284,716,430.56-7,108,501,688.40

Finding the Fourth Proportional to 8,910,872,411.92, 12,284,716,430.56 and 7,108,501,688.40

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Solution

The fourth proportional to 8,910,872,411.92, 12,284,716,430.56 and 7,108,501,688.40 is: 9,799,930,180.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910,872,411.92 : 12,284,716,430.56 = 7,108,501,688.40 : x
  2. Step 2: Convert to fraction form
    8,910,872,411.92/12,284,716,430.56 = 7,108,501,688.40/x
  3. Step 3: Cross multiply
    8,910,872,411.92x = 12,284,716,430.56 × 7,108,501,688.40
  4. Step 4: Simplify right side
    8,910,872,411.92x = 87,325,927,488,189,317,120
  5. Step 5: Solve for x
    x = 87,325,927,488,189,317,120/8,910,872,411.92
  6. Step 6: Final answer
    x = 9,799,930,180.95

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1.5x scale

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.