Home / 199,728,579.60-299,592,869.40-70,482,128.40

Finding the Fourth Proportional to 199,728,579.60, 299,592,869.40 and 70,482,128.40

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Solution

The fourth proportional to 199,728,579.60, 299,592,869.40 and 70,482,128.40 is: 105,723,192.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,728,579.60 : 299,592,869.40 = 70,482,128.40 : x
  2. Step 2: Convert to fraction form
    199,728,579.60/299,592,869.40 = 70,482,128.40/x
  3. Step 3: Cross multiply
    199,728,579.60x = 299,592,869.40 × 70,482,128.40
  4. Step 4: Simplify right side
    199,728,579.60x = 21,115,943,088,775,232
  5. Step 5: Solve for x
    x = 21,115,943,088,775,232/199,728,579.60
  6. Step 6: Final answer
    x = 105,723,192.60

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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.