Home / 765,817,280.48-1,056,799,945.81-426,708,234.83

Finding the Fourth Proportional to 765,817,280.48, 1,056,799,945.81 and 426,708,234.83

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Solution

The fourth proportional to 765,817,280.48, 1,056,799,945.81 and 426,708,234.83 is: 588,841,817.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,817,280.48 : 1,056,799,945.81 = 426,708,234.83 : x
  2. Step 2: Convert to fraction form
    765,817,280.48/1,056,799,945.81 = 426,708,234.83/x
  3. Step 3: Cross multiply
    765,817,280.48x = 1,056,799,945.81 × 426,708,234.83
  4. Step 4: Simplify right side
    765,817,280.48x = 450,945,239,439,554,688
  5. Step 5: Solve for x
    x = 450,945,239,439,554,688/765,817,280.48
  6. Step 6: Final answer
    x = 588,841,817.67

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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.