Home / 679,509,054.14-1,019,264,763.55-213,206,263.40

Finding the Fourth Proportional to 679,509,054.14, 1,019,264,763.55 and 213,206,263.40

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Solution

The fourth proportional to 679,509,054.14, 1,019,264,763.55 and 213,206,263.40 is: 319,809,766.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,509,054.14 : 1,019,264,763.55 = 213,206,263.40 : x
  2. Step 2: Convert to fraction form
    679,509,054.14/1,019,264,763.55 = 213,206,263.40/x
  3. Step 3: Cross multiply
    679,509,054.14x = 1,019,264,763.55 × 213,206,263.40
  4. Step 4: Simplify right side
    679,509,054.14x = 217,313,631,655,637,440
  5. Step 5: Solve for x
    x = 217,313,631,655,637,440/679,509,054.14
  6. Step 6: Final answer
    x = 319,809,766.08

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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.