Home / 685,887,929.86-946,531,994.13-372,624,389.95

Finding the Fourth Proportional to 685,887,929.86, 946,531,994.13 and 372,624,389.95

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Solution

The fourth proportional to 685,887,929.86, 946,531,994.13 and 372,624,389.95 is: 514,225,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,887,929.86 : 946,531,994.13 = 372,624,389.95 : x
  2. Step 2: Convert to fraction form
    685,887,929.86/946,531,994.13 = 372,624,389.95/x
  3. Step 3: Cross multiply
    685,887,929.86x = 946,531,994.13 × 372,624,389.95
  4. Step 4: Simplify right side
    685,887,929.86x = 352,700,906,880,848,192
  5. Step 5: Solve for x
    x = 352,700,906,880,848,192/685,887,929.86
  6. Step 6: Final answer
    x = 514,225,271.40

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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.