Home / 528,750,781,210.29-729,678,549,071.25-300,392,553,829.62

Finding the Fourth Proportional to 528,750,781,210.29, 729,678,549,071.25 and 300,392,553,829.62

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Solution

The fourth proportional to 528,750,781,210.29, 729,678,549,071.25 and 300,392,553,829.62 is: 414,543,128,103.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,750,781,210.29 : 729,678,549,071.25 = 300,392,553,829.62 : x
  2. Step 2: Convert to fraction form
    528,750,781,210.29/729,678,549,071.25 = 300,392,553,829.62/x
  3. Step 3: Cross multiply
    528,750,781,210.29x = 729,678,549,071.25 × 300,392,553,829.62
  4. Step 4: Simplify right side
    528,750,781,210.29x = 219,190,002,830,204,483,928,064
  5. Step 5: Solve for x
    x = 219,190,002,830,204,483,928,064/528,750,781,210.29
  6. Step 6: Final answer
    x = 414,543,128,103.73

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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.