Home / 679,785,192.32-938,049,905.61-382,368,222.50

Finding the Fourth Proportional to 679,785,192.32, 938,049,905.61 and 382,368,222.50

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Solution

The fourth proportional to 679,785,192.32, 938,049,905.61 and 382,368,222.50 is: 527,637,964.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,785,192.32 : 938,049,905.61 = 382,368,222.50 : x
  2. Step 2: Convert to fraction form
    679,785,192.32/938,049,905.61 = 382,368,222.50/x
  3. Step 3: Cross multiply
    679,785,192.32x = 938,049,905.61 × 382,368,222.50
  4. Step 4: Simplify right side
    679,785,192.32x = 358,680,475,019,698,240
  5. Step 5: Solve for x
    x = 358,680,475,019,698,240/679,785,192.32
  6. Step 6: Final answer
    x = 527,637,964.28

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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.