Home / 930,315,259.68-1,283,862,443.34-512,654,448.90

Finding the Fourth Proportional to 930,315,259.68, 1,283,862,443.34 and 512,654,448.90

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Solution

The fourth proportional to 930,315,259.68, 1,283,862,443.34 and 512,654,448.90 is: 707,478,230.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,315,259.68 : 1,283,862,443.34 = 512,654,448.90 : x
  2. Step 2: Convert to fraction form
    930,315,259.68/1,283,862,443.34 = 512,654,448.90/x
  3. Step 3: Cross multiply
    930,315,259.68x = 1,283,862,443.34 × 512,654,448.90
  4. Step 4: Simplify right side
    930,315,259.68x = 658,177,793,353,875,072
  5. Step 5: Solve for x
    x = 658,177,793,353,875,072/930,315,259.68
  6. Step 6: Final answer
    x = 707,478,230.10

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1.5x scale

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.