Home / 525,858,263.20-725,456,293.68-316,895,661.28

Finding the Fourth Proportional to 525,858,263.20, 725,456,293.68 and 316,895,661.28

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Solution

The fourth proportional to 525,858,263.20, 725,456,293.68 and 316,895,661.28 is: 437,178,547.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,858,263.20 : 725,456,293.68 = 316,895,661.28 : x
  2. Step 2: Convert to fraction form
    525,858,263.20/725,456,293.68 = 316,895,661.28/x
  3. Step 3: Cross multiply
    525,858,263.20x = 725,456,293.68 × 316,895,661.28
  4. Step 4: Simplify right side
    525,858,263.20x = 229,893,951,915,461,440
  5. Step 5: Solve for x
    x = 229,893,951,915,461,440/525,858,263.20
  6. Step 6: Final answer
    x = 437,178,547.92

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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.