Home / 656,369,670.40-906,069,045.12-408,973,258.24

Finding the Fourth Proportional to 656,369,670.40, 906,069,045.12 and 408,973,258.24

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Solution

The fourth proportional to 656,369,670.40, 906,069,045.12 and 408,973,258.24 is: 564,556,874.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,369,670.40 : 906,069,045.12 = 408,973,258.24 : x
  2. Step 2: Convert to fraction form
    656,369,670.40/906,069,045.12 = 408,973,258.24/x
  3. Step 3: Cross multiply
    656,369,670.40x = 906,069,045.12 × 408,973,258.24
  4. Step 4: Simplify right side
    656,369,670.40x = 370,558,009,573,131,968
  5. Step 5: Solve for x
    x = 370,558,009,573,131,968/656,369,670.40
  6. Step 6: Final answer
    x = 564,556,874.40

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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.