Home / 524,438,341.40-723,725,055.96-289,489,154.96

Finding the Fourth Proportional to 524,438,341.40, 723,725,055.96 and 289,489,154.96

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Solution

The fourth proportional to 524,438,341.40, 723,725,055.96 and 289,489,154.96 is: 399,495,113.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,438,341.40 : 723,725,055.96 = 289,489,154.96 : x
  2. Step 2: Convert to fraction form
    524,438,341.40/723,725,055.96 = 289,489,154.96/x
  3. Step 3: Cross multiply
    524,438,341.40x = 723,725,055.96 × 289,489,154.96
  4. Step 4: Simplify right side
    524,438,341.40x = 209,510,554,873,239,104
  5. Step 5: Solve for x
    x = 209,510,554,873,239,104/524,438,341.40
  6. Step 6: Final answer
    x = 399,495,113.79

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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.