Home / 426,184,442.60-639,276,663.90-153,564,103.40

Finding the Fourth Proportional to 426,184,442.60, 639,276,663.90 and 153,564,103.40

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Solution

The fourth proportional to 426,184,442.60, 639,276,663.90 and 153,564,103.40 is: 230,346,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,184,442.60 : 639,276,663.90 = 153,564,103.40 : x
  2. Step 2: Convert to fraction form
    426,184,442.60/639,276,663.90 = 153,564,103.40/x
  3. Step 3: Cross multiply
    426,184,442.60x = 639,276,663.90 × 153,564,103.40
  4. Step 4: Simplify right side
    426,184,442.60x = 98,169,947,716,346,640
  5. Step 5: Solve for x
    x = 98,169,947,716,346,640/426,184,442.60
  6. Step 6: Final answer
    x = 230,346,155.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.