Home / 1,020,017,065.60-1,527,474,681.60-815,943,721.60

Finding the Fourth Proportional to 1,020,017,065.60, 1,527,474,681.60 and 815,943,721.60

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Solution

The fourth proportional to 1,020,017,065.60, 1,527,474,681.60 and 815,943,721.60 is: 1,221,875,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,017,065.60 : 1,527,474,681.60 = 815,943,721.60 : x
  2. Step 2: Convert to fraction form
    1,020,017,065.60/1,527,474,681.60 = 815,943,721.60/x
  3. Step 3: Cross multiply
    1,020,017,065.60x = 1,527,474,681.60 × 815,943,721.60
  4. Step 4: Simplify right side
    1,020,017,065.60x = 1,246,333,376,354,479,104
  5. Step 5: Solve for x
    x = 1,246,333,376,354,479,104/1,020,017,065.60
  6. Step 6: Final answer
    x = 1,221,875,023.85

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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.