Home / 910,675,106.88-1,256,730,194.16-492,987,281.46

Finding the Fourth Proportional to 910,675,106.88, 1,256,730,194.16 and 492,987,281.46

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Solution

The fourth proportional to 910,675,106.88, 1,256,730,194.16 and 492,987,281.46 is: 680,321,661.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,675,106.88 : 1,256,730,194.16 = 492,987,281.46 : x
  2. Step 2: Convert to fraction form
    910,675,106.88/1,256,730,194.16 = 492,987,281.46/x
  3. Step 3: Cross multiply
    910,675,106.88x = 1,256,730,194.16 × 492,987,281.46
  4. Step 4: Simplify right side
    910,675,106.88x = 619,552,001,947,636,352
  5. Step 5: Solve for x
    x = 619,552,001,947,636,352/910,675,106.88
  6. Step 6: Final answer
    x = 680,321,661.66

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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.