Home / 155,822,478.55-215,033,426.06-86,208,357.66

Finding the Fourth Proportional to 155,822,478.55, 215,033,426.06 and 86,208,357.66

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Solution

The fourth proportional to 155,822,478.55, 215,033,426.06 and 86,208,357.66 is: 118,966,651.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,822,478.55 : 215,033,426.06 = 86,208,357.66 : x
  2. Step 2: Convert to fraction form
    155,822,478.55/215,033,426.06 = 86,208,357.66/x
  3. Step 3: Cross multiply
    155,822,478.55x = 215,033,426.06 × 86,208,357.66
  4. Step 4: Simplify right side
    155,822,478.55x = 18,537,678,502,607,788
  5. Step 5: Solve for x
    x = 18,537,678,502,607,788/155,822,478.55
  6. Step 6: Final answer
    x = 118,966,651.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.