Home / 128,094,120.90-176,637,762.18-109,570,579.74

Finding the Fourth Proportional to 128,094,120.90, 176,637,762.18 and 109,570,579.74

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Solution

The fourth proportional to 128,094,120.90, 176,637,762.18 and 109,570,579.74 is: 151,094,381.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,094,120.90 : 176,637,762.18 = 109,570,579.74 : x
  2. Step 2: Convert to fraction form
    128,094,120.90/176,637,762.18 = 109,570,579.74/x
  3. Step 3: Cross multiply
    128,094,120.90x = 176,637,762.18 × 109,570,579.74
  4. Step 4: Simplify right side
    128,094,120.90x = 19,354,302,006,038,848
  5. Step 5: Solve for x
    x = 19,354,302,006,038,848/128,094,120.90
  6. Step 6: Final answer
    x = 151,094,381.77

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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.