Home / 399,698,666.10-599,547,999.15-308,887,427.70

Finding the Fourth Proportional to 399,698,666.10, 599,547,999.15 and 308,887,427.70

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Solution

The fourth proportional to 399,698,666.10, 599,547,999.15 and 308,887,427.70 is: 463,331,141.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,698,666.10 : 599,547,999.15 = 308,887,427.70 : x
  2. Step 2: Convert to fraction form
    399,698,666.10/599,547,999.15 = 308,887,427.70/x
  3. Step 3: Cross multiply
    399,698,666.10x = 599,547,999.15 × 308,887,427.70
  4. Step 4: Simplify right side
    399,698,666.10x = 185,192,839,240,125,280
  5. Step 5: Solve for x
    x = 185,192,839,240,125,280/399,698,666.10
  6. Step 6: Final answer
    x = 463,331,141.55

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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.