Home / 1,152,018,439.12-1,589,788,209.51-623,388,097.72

Finding the Fourth Proportional to 1,152,018,439.12, 1,589,788,209.51 and 623,388,097.72

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Solution

The fourth proportional to 1,152,018,439.12, 1,589,788,209.51 and 623,388,097.72 is: 860,277,070.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,018,439.12 : 1,589,788,209.51 = 623,388,097.72 : x
  2. Step 2: Convert to fraction form
    1,152,018,439.12/1,589,788,209.51 = 623,388,097.72/x
  3. Step 3: Cross multiply
    1,152,018,439.12x = 1,589,788,209.51 × 623,388,097.72
  4. Step 4: Simplify right side
    1,152,018,439.12x = 991,055,047,704,123,776
  5. Step 5: Solve for x
    x = 991,055,047,704,123,776/1,152,018,439.12
  6. Step 6: Final answer
    x = 860,277,070.27

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Double scale
Find fourth proportional to 1,152,018,440.12, 1,589,788,210.89 and 623,388,098.72
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1.5x scale

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.