Home / 528,875,838.20-793,313,757.30-313,884,990.20

Finding the Fourth Proportional to 528,875,838.20, 793,313,757.30 and 313,884,990.20

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Solution

The fourth proportional to 528,875,838.20, 793,313,757.30 and 313,884,990.20 is: 470,827,485.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,875,838.20 : 793,313,757.30 = 313,884,990.20 : x
  2. Step 2: Convert to fraction form
    528,875,838.20/793,313,757.30 = 313,884,990.20/x
  3. Step 3: Cross multiply
    528,875,838.20x = 793,313,757.30 × 313,884,990.20
  4. Step 4: Simplify right side
    528,875,838.20x = 249,009,280,935,635,648
  5. Step 5: Solve for x
    x = 249,009,280,935,635,648/528,875,838.20
  6. Step 6: Final answer
    x = 470,827,485.30

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Similar ratio
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1.5x scale

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.