Home / 910,127,212.98-1,255,966,612.29-492,430,333.38

Finding the Fourth Proportional to 910,127,212.98, 1,255,966,612.29 and 492,430,333.38

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Solution

The fourth proportional to 910,127,212.98, 1,255,966,612.29 and 492,430,333.38 is: 679,549,022.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,127,212.98 : 1,255,966,612.29 = 492,430,333.38 : x
  2. Step 2: Convert to fraction form
    910,127,212.98/1,255,966,612.29 = 492,430,333.38/x
  3. Step 3: Cross multiply
    910,127,212.98x = 1,255,966,612.29 × 492,430,333.38
  4. Step 4: Simplify right side
    910,127,212.98x = 618,476,057,604,113,920
  5. Step 5: Solve for x
    x = 618,476,057,604,113,920/910,127,212.98
  6. Step 6: Final answer
    x = 679,549,022.14

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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.