Home / 915,768,925.20-1,371,637,848.60-551,628,176.40

Finding the Fourth Proportional to 915,768,925.20, 1,371,637,848.60 and 551,628,176.40

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Solution

The fourth proportional to 915,768,925.20, 1,371,637,848.60 and 551,628,176.40 is: 826,228,172.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,768,925.20 : 1,371,637,848.60 = 551,628,176.40 : x
  2. Step 2: Convert to fraction form
    915,768,925.20/1,371,637,848.60 = 551,628,176.40/x
  3. Step 3: Cross multiply
    915,768,925.20x = 1,371,637,848.60 × 551,628,176.40
  4. Step 4: Simplify right side
    915,768,925.20x = 756,634,085,104,437,248
  5. Step 5: Solve for x
    x = 756,634,085,104,437,248/915,768,925.20
  6. Step 6: Final answer
    x = 826,228,172.07

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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.