Home / 918,316,347.38-1,267,264,457.07-516,429,976.95

Finding the Fourth Proportional to 918,316,347.38, 1,267,264,457.07 and 516,429,976.95

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Solution

The fourth proportional to 918,316,347.38, 1,267,264,457.07 and 516,429,976.95 is: 712,666,562.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,316,347.38 : 1,267,264,457.07 = 516,429,976.95 : x
  2. Step 2: Convert to fraction form
    918,316,347.38/1,267,264,457.07 = 516,429,976.95/x
  3. Step 3: Cross multiply
    918,316,347.38x = 1,267,264,457.07 × 516,429,976.95
  4. Step 4: Simplify right side
    918,316,347.38x = 654,453,354,354,214,272
  5. Step 5: Solve for x
    x = 654,453,354,354,214,272/918,316,347.38
  6. Step 6: Final answer
    x = 712,666,562.26

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Double scale
Find fourth proportional to 918,316,348.38, 1,267,264,458.45 and 516,429,977.95
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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.