Home / 103,479,087.65-155,260,039.58-42,072,966.39

Finding the Fourth Proportional to 103,479,087.65, 155,260,039.58 and 42,072,966.39

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Solution

The fourth proportional to 103,479,087.65, 155,260,039.58 and 42,072,966.39 is: 63,126,285.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,479,087.65 : 155,260,039.58 = 42,072,966.39 : x
  2. Step 2: Convert to fraction form
    103,479,087.65/155,260,039.58 = 42,072,966.39/x
  3. Step 3: Cross multiply
    103,479,087.65x = 155,260,039.58 × 42,072,966.39
  4. Step 4: Simplify right side
    103,479,087.65x = 6,532,250,426,749,044
  5. Step 5: Solve for x
    x = 6,532,250,426,749,044/103,479,087.65
  6. Step 6: Final answer
    x = 63,126,285.47

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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.