Home / 426,473,004.60-639,709,502.10-103,356,876.60

Finding the Fourth Proportional to 426,473,004.60, 639,709,502.10 and 103,356,876.60

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Solution

The fourth proportional to 426,473,004.60, 639,709,502.10 and 103,356,876.60 is: 155,035,313.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,473,004.60 : 639,709,502.10 = 103,356,876.60 : x
  2. Step 2: Convert to fraction form
    426,473,004.60/639,709,502.10 = 103,356,876.60/x
  3. Step 3: Cross multiply
    426,473,004.60x = 639,709,502.10 × 103,356,876.60
  4. Step 4: Simplify right side
    426,473,004.60x = 66,118,376,068,397,136
  5. Step 5: Solve for x
    x = 66,118,376,068,397,136/426,473,004.60
  6. Step 6: Final answer
    x = 155,035,313.74

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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.