Home / 910,127,186.48-1,255,966,575.72-492,430,306.88

Finding the Fourth Proportional to 910,127,186.48, 1,255,966,575.72 and 492,430,306.88

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Solution

The fourth proportional to 910,127,186.48, 1,255,966,575.72 and 492,430,306.88 is: 679,548,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,127,186.48 : 1,255,966,575.72 = 492,430,306.88 : x
  2. Step 2: Convert to fraction form
    910,127,186.48/1,255,966,575.72 = 492,430,306.88/x
  3. Step 3: Cross multiply
    910,127,186.48x = 1,255,966,575.72 × 492,430,306.88
  4. Step 4: Simplify right side
    910,127,186.48x = 618,476,006,312,822,400
  5. Step 5: Solve for x
    x = 618,476,006,312,822,400/910,127,186.48
  6. Step 6: Final answer
    x = 679,548,985.57

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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.