Home / 128,056,401.60-191,966,901.68-46,155,235.68

Finding the Fourth Proportional to 128,056,401.60, 191,966,901.68 and 46,155,235.68

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Solution

The fourth proportional to 128,056,401.60, 191,966,901.68 and 46,155,235.68 is: 69,190,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,056,401.60 : 191,966,901.68 = 46,155,235.68 : x
  2. Step 2: Convert to fraction form
    128,056,401.60/191,966,901.68 = 46,155,235.68/x
  3. Step 3: Cross multiply
    128,056,401.60x = 191,966,901.68 × 46,155,235.68
  4. Step 4: Simplify right side
    128,056,401.60x = 8,860,277,589,799,788
  5. Step 5: Solve for x
    x = 8,860,277,589,799,788/128,056,401.60
  6. Step 6: Final answer
    x = 69,190,430.77

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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.