Home / 30,676,784.84-42,349,303.80-19,078,085

Finding the Fourth Proportional to 30,676,784.84, 42,349,303.80 and 19,078,085

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Solution

The fourth proportional to 30,676,784.84, 42,349,303.80 and 19,078,085 is: 26,337,297.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,676,784.84 : 42,349,303.80 = 19,078,085 : x
  2. Step 2: Convert to fraction form
    30,676,784.84/42,349,303.80 = 19,078,085/x
  3. Step 3: Cross multiply
    30,676,784.84x = 42,349,303.80 × 19,078,085
  4. Step 4: Simplify right side
    30,676,784.84x = 807,943,617,587,223
  5. Step 5: Solve for x
    x = 807,943,617,587,223/30,676,784.84
  6. Step 6: Final answer
    x = 26,337,297.79

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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.