Home / 30,663,610.78-42,316,281.78-16,724,962.35

Finding the Fourth Proportional to 30,663,610.78, 42,316,281.78 and 16,724,962.35

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Solution

The fourth proportional to 30,663,610.78, 42,316,281.78 and 16,724,962.35 is: 23,080,720.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,663,610.78 : 42,316,281.78 = 16,724,962.35 : x
  2. Step 2: Convert to fraction form
    30,663,610.78/42,316,281.78 = 16,724,962.35/x
  3. Step 3: Cross multiply
    30,663,610.78x = 42,316,281.78 × 16,724,962.35
  4. Step 4: Simplify right side
    30,663,610.78x = 707,738,219,772,340.38
  5. Step 5: Solve for x
    x = 707,738,219,772,340.38/30,663,610.78
  6. Step 6: Final answer
    x = 23,080,720.17

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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.