Home / 387,423,148.80-581,136,822.72-114,796,277.76

Finding the Fourth Proportional to 387,423,148.80, 581,136,822.72 and 114,796,277.76

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Solution

The fourth proportional to 387,423,148.80, 581,136,822.72 and 114,796,277.76 is: 172,195,038.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,423,148.80 : 581,136,822.72 = 114,796,277.76 : x
  2. Step 2: Convert to fraction form
    387,423,148.80/581,136,822.72 = 114,796,277.76/x
  3. Step 3: Cross multiply
    387,423,148.80x = 581,136,822.72 × 114,796,277.76
  4. Step 4: Simplify right side
    387,423,148.80x = 66,712,344,117,529,008
  5. Step 5: Solve for x
    x = 66,712,344,117,529,008/387,423,148.80
  6. Step 6: Final answer
    x = 172,195,038.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.