Home / 151,600,218.13-209,208,931.46-81,985,599.01

Finding the Fourth Proportional to 151,600,218.13, 209,208,931.46 and 81,985,599.01

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Solution

The fourth proportional to 151,600,218.13, 209,208,931.46 and 81,985,599.01 is: 113,140,467.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,600,218.13 : 209,208,931.46 = 81,985,599.01 : x
  2. Step 2: Convert to fraction form
    151,600,218.13/209,208,931.46 = 81,985,599.01/x
  3. Step 3: Cross multiply
    151,600,218.13x = 209,208,931.46 × 81,985,599.01
  4. Step 4: Simplify right side
    151,600,218.13x = 17,152,119,563,990,136
  5. Step 5: Solve for x
    x = 17,152,119,563,990,136/151,600,218.13
  6. Step 6: Final answer
    x = 113,140,467.58

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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.