Home / 210,569,457.20-290,487,929.10-136,254,007.10

Finding the Fourth Proportional to 210,569,457.20, 290,487,929.10 and 136,254,007.10

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Solution

The fourth proportional to 210,569,457.20, 290,487,929.10 and 136,254,007.10 is: 187,967,167.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,569,457.20 : 290,487,929.10 = 136,254,007.10 : x
  2. Step 2: Convert to fraction form
    210,569,457.20/290,487,929.10 = 136,254,007.10/x
  3. Step 3: Cross multiply
    210,569,457.20x = 290,487,929.10 × 136,254,007.10
  4. Step 4: Simplify right side
    210,569,457.20x = 39,580,144,352,603,256
  5. Step 5: Solve for x
    x = 39,580,144,352,603,256/210,569,457.20
  6. Step 6: Final answer
    x = 187,967,167.13

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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.