Home / 806,078,553,411.05-1,209,287,643,662.10-261,484,527,763.45

Finding the Fourth Proportional to 806,078,553,411.05, 1,209,287,643,662.10 and 261,484,527,763.45

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Solution

The fourth proportional to 806,078,553,411.05, 1,209,287,643,662.10 and 261,484,527,763.45 is: 392,281,877,609.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,078,553,411.05 : 1,209,287,643,662.10 = 261,484,527,763.45 : x
  2. Step 2: Convert to fraction form
    806,078,553,411.05/1,209,287,643,662.10 = 261,484,527,763.45/x
  3. Step 3: Cross multiply
    806,078,553,411.05x = 1,209,287,643,662.10 × 261,484,527,763.45
  4. Step 4: Simplify right side
    806,078,553,411.05x = 316,210,008,433,159,468,744,704
  5. Step 5: Solve for x
    x = 316,210,008,433,159,468,744,704/806,078,553,411.05
  6. Step 6: Final answer
    x = 392,281,877,609.90

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Double scale
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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.