Home / 786,397,339.40-1,179,596,009.10-541,509,326.60

Finding the Fourth Proportional to 786,397,339.40, 1,179,596,009.10 and 541,509,326.60

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Solution

The fourth proportional to 786,397,339.40, 1,179,596,009.10 and 541,509,326.60 is: 812,263,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,397,339.40 : 1,179,596,009.10 = 541,509,326.60 : x
  2. Step 2: Convert to fraction form
    786,397,339.40/1,179,596,009.10 = 541,509,326.60/x
  3. Step 3: Cross multiply
    786,397,339.40x = 1,179,596,009.10 × 541,509,326.60
  4. Step 4: Simplify right side
    786,397,339.40x = 638,762,240,547,788,416
  5. Step 5: Solve for x
    x = 638,762,240,547,788,416/786,397,339.40
  6. Step 6: Final answer
    x = 812,263,989.90

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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.