Home / 154,666,622.37-213,387,705.98-87,678,398.20

Finding the Fourth Proportional to 154,666,622.37, 213,387,705.98 and 87,678,398.20

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Solution

The fourth proportional to 154,666,622.37, 213,387,705.98 and 87,678,398.20 is: 120,966,579.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,666,622.37 : 213,387,705.98 = 87,678,398.20 : x
  2. Step 2: Convert to fraction form
    154,666,622.37/213,387,705.98 = 87,678,398.20/x
  3. Step 3: Cross multiply
    154,666,622.37x = 213,387,705.98 × 87,678,398.20
  4. Step 4: Simplify right side
    154,666,622.37x = 18,709,492,256,767,880
  5. Step 5: Solve for x
    x = 18,709,492,256,767,880/154,666,622.37
  6. Step 6: Final answer
    x = 120,966,579.41

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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.