Home / 1,255,816,129.43-1,883,896,580.02-426,547,143.62

Finding the Fourth Proportional to 1,255,816,129.43, 1,883,896,580.02 and 426,547,143.62

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Solution

The fourth proportional to 1,255,816,129.43, 1,883,896,580.02 and 426,547,143.62 is: 639,879,267.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,816,129.43 : 1,883,896,580.02 = 426,547,143.62 : x
  2. Step 2: Convert to fraction form
    1,255,816,129.43/1,883,896,580.02 = 426,547,143.62/x
  3. Step 3: Cross multiply
    1,255,816,129.43x = 1,883,896,580.02 × 426,547,143.62
  4. Step 4: Simplify right side
    1,255,816,129.43x = 803,570,705,080,406,912
  5. Step 5: Solve for x
    x = 803,570,705,080,406,912/1,255,816,129.43
  6. Step 6: Final answer
    x = 639,879,267.55

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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.