Home / 103,038,017.80-154,557,026.70-72,804,929.80

Finding the Fourth Proportional to 103,038,017.80, 154,557,026.70 and 72,804,929.80

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Solution

The fourth proportional to 103,038,017.80, 154,557,026.70 and 72,804,929.80 is: 109,207,394.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,038,017.80 : 154,557,026.70 = 72,804,929.80 : x
  2. Step 2: Convert to fraction form
    103,038,017.80/154,557,026.70 = 72,804,929.80/x
  3. Step 3: Cross multiply
    103,038,017.80x = 154,557,026.70 × 72,804,929.80
  4. Step 4: Simplify right side
    103,038,017.80x = 11,252,513,478,990,224
  5. Step 5: Solve for x
    x = 11,252,513,478,990,224/103,038,017.80
  6. Step 6: Final answer
    x = 109,207,394.70

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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.