Home / 100,874,670.34-139,202,744-56,218,266.22

Finding the Fourth Proportional to 100,874,670.34, 139,202,744 and 56,218,266.22

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Solution

The fourth proportional to 100,874,670.34, 139,202,744 and 56,218,266.22 is: 77,578,810.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,874,670.34 : 139,202,744 = 56,218,266.22 : x
  2. Step 2: Convert to fraction form
    100,874,670.34/139,202,744 = 56,218,266.22/x
  3. Step 3: Cross multiply
    100,874,670.34x = 139,202,744 × 56,218,266.22
  4. Step 4: Simplify right side
    100,874,670.34x = 7,825,736,920,746,508
  5. Step 5: Solve for x
    x = 7,825,736,920,746,508/100,874,670.34
  6. Step 6: Final answer
    x = 77,578,810.36

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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.