Home / 808,509,968.70-1,210,497,471.45-785,835,152.70

Finding the Fourth Proportional to 808,509,968.70, 1,210,497,471.45 and 785,835,152.70

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Solution

The fourth proportional to 808,509,968.70, 1,210,497,471.45 and 785,835,152.70 is: 1,176,548,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,509,968.70 : 1,210,497,471.45 = 785,835,152.70 : x
  2. Step 2: Convert to fraction form
    808,509,968.70/1,210,497,471.45 = 785,835,152.70/x
  3. Step 3: Cross multiply
    808,509,968.70x = 1,210,497,471.45 × 785,835,152.70
  4. Step 4: Simplify right side
    808,509,968.70x = 951,251,465,319,874,688
  5. Step 5: Solve for x
    x = 951,251,465,319,874,688/808,509,968.70
  6. Step 6: Final answer
    x = 1,176,548,839.40

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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.