Home / 289,426,106.86-399,407,157.88-157,267,506.62

Finding the Fourth Proportional to 289,426,106.86, 399,407,157.88 and 157,267,506.62

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Solution

The fourth proportional to 289,426,106.86, 399,407,157.88 and 157,267,506.62 is: 217,028,686.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,426,106.86 : 399,407,157.88 = 157,267,506.62 : x
  2. Step 2: Convert to fraction form
    289,426,106.86/399,407,157.88 = 157,267,506.62/x
  3. Step 3: Cross multiply
    289,426,106.86x = 399,407,157.88 × 157,267,506.62
  4. Step 4: Simplify right side
    289,426,106.86x = 62,813,767,845,968,288
  5. Step 5: Solve for x
    x = 62,813,767,845,968,288/289,426,106.86
  6. Step 6: Final answer
    x = 217,028,686.62

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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.