Home / 209,618,139.40-314,191,013.10-100,495,587.40

Finding the Fourth Proportional to 209,618,139.40, 314,191,013.10 and 100,495,587.40

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Solution

The fourth proportional to 209,618,139.40, 314,191,013.10 and 100,495,587.40 is: 150,630,143.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,618,139.40 : 314,191,013.10 = 100,495,587.40 : x
  2. Step 2: Convert to fraction form
    209,618,139.40/314,191,013.10 = 100,495,587.40/x
  3. Step 3: Cross multiply
    209,618,139.40x = 314,191,013.10 × 100,495,587.40
  4. Step 4: Simplify right side
    209,618,139.40x = 31,574,810,417,285,600
  5. Step 5: Solve for x
    x = 31,574,810,417,285,600/209,618,139.40
  6. Step 6: Final answer
    x = 150,630,143.50

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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.