Home / 817,360,894.32-1,225,997,386.83-402,424,063.80

Finding the Fourth Proportional to 817,360,894.32, 1,225,997,386.83 and 402,424,063.80

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Solution

The fourth proportional to 817,360,894.32, 1,225,997,386.83 and 402,424,063.80 is: 603,614,454.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,360,894.32 : 1,225,997,386.83 = 402,424,063.80 : x
  2. Step 2: Convert to fraction form
    817,360,894.32/1,225,997,386.83 = 402,424,063.80/x
  3. Step 3: Cross multiply
    817,360,894.32x = 1,225,997,386.83 × 402,424,063.80
  4. Step 4: Simplify right side
    817,360,894.32x = 493,370,850,616,309,184
  5. Step 5: Solve for x
    x = 493,370,850,616,309,184/817,360,894.32
  6. Step 6: Final answer
    x = 603,614,454.82

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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.