Home / 128,454,810.48-177,267,809.52-69,717,475.60

Finding the Fourth Proportional to 128,454,810.48, 177,267,809.52 and 69,717,475.60

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Solution

The fourth proportional to 128,454,810.48, 177,267,809.52 and 69,717,475.60 is: 96,210,209.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,454,810.48 : 177,267,809.52 = 69,717,475.60 : x
  2. Step 2: Convert to fraction form
    128,454,810.48/177,267,809.52 = 69,717,475.60/x
  3. Step 3: Cross multiply
    128,454,810.48x = 177,267,809.52 × 69,717,475.60
  4. Step 4: Simplify right side
    128,454,810.48x = 12,358,664,184,432,878
  5. Step 5: Solve for x
    x = 12,358,664,184,432,878/128,454,810.48
  6. Step 6: Final answer
    x = 96,210,209.16

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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.