Home / 423,564,811.78-633,396,796.40-402,902,385.70

Finding the Fourth Proportional to 423,564,811.78, 633,396,796.40 and 402,902,385.70

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Solution

The fourth proportional to 423,564,811.78, 633,396,796.40 and 402,902,385.70 is: 602,498,303.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,564,811.78 : 633,396,796.40 = 402,902,385.70 : x
  2. Step 2: Convert to fraction form
    423,564,811.78/633,396,796.40 = 402,902,385.70/x
  3. Step 3: Cross multiply
    423,564,811.78x = 633,396,796.40 × 402,902,385.70
  4. Step 4: Simplify right side
    423,564,811.78x = 255,197,080,364,993,088
  5. Step 5: Solve for x
    x = 255,197,080,364,993,088/423,564,811.78
  6. Step 6: Final answer
    x = 602,498,303.13

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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.