Home / 209,808,001.70-314,712,002.55-208,464,308.90

Finding the Fourth Proportional to 209,808,001.70, 314,712,002.55 and 208,464,308.90

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Solution

The fourth proportional to 209,808,001.70, 314,712,002.55 and 208,464,308.90 is: 312,696,463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,808,001.70 : 314,712,002.55 = 208,464,308.90 : x
  2. Step 2: Convert to fraction form
    209,808,001.70/314,712,002.55 = 208,464,308.90/x
  3. Step 3: Cross multiply
    209,808,001.70x = 314,712,002.55 × 208,464,308.90
  4. Step 4: Simplify right side
    209,808,001.70x = 65,606,220,114,120,792
  5. Step 5: Solve for x
    x = 65,606,220,114,120,792/209,808,001.70
  6. Step 6: Final answer
    x = 312,696,463.35

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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.