Home / 908,630,394.17-1,253,909,946.35-490,942,679.45

Finding the Fourth Proportional to 908,630,394.17, 1,253,909,946.35 and 490,942,679.45

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Solution

The fourth proportional to 908,630,394.17, 1,253,909,946.35 and 490,942,679.45 is: 677,500,898.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,630,394.17 : 1,253,909,946.35 = 490,942,679.45 : x
  2. Step 2: Convert to fraction form
    908,630,394.17/1,253,909,946.35 = 490,942,679.45/x
  3. Step 3: Cross multiply
    908,630,394.17x = 1,253,909,946.35 × 490,942,679.45
  4. Step 4: Simplify right side
    908,630,394.17x = 615,597,908,845,032,576
  5. Step 5: Solve for x
    x = 615,597,908,845,032,576/908,630,394.17
  6. Step 6: Final answer
    x = 677,500,898.93

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Double scale
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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.