Home / 429,121,027.60-643,681,541.40-156,500,688.40

Finding the Fourth Proportional to 429,121,027.60, 643,681,541.40 and 156,500,688.40

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Solution

The fourth proportional to 429,121,027.60, 643,681,541.40 and 156,500,688.40 is: 234,751,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,121,027.60 : 643,681,541.40 = 156,500,688.40 : x
  2. Step 2: Convert to fraction form
    429,121,027.60/643,681,541.40 = 156,500,688.40/x
  3. Step 3: Cross multiply
    429,121,027.60x = 643,681,541.40 × 156,500,688.40
  4. Step 4: Simplify right side
    429,121,027.60x = 100,736,604,339,473,104
  5. Step 5: Solve for x
    x = 100,736,604,339,473,104/429,121,027.60
  6. Step 6: Final answer
    x = 234,751,032.60

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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.