Home / 772,557,875.80-1,158,836,813.70-742,425,171.10

Finding the Fourth Proportional to 772,557,875.80, 1,158,836,813.70 and 742,425,171.10

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Solution

The fourth proportional to 772,557,875.80, 1,158,836,813.70 and 742,425,171.10 is: 1,113,637,756.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,557,875.80 : 1,158,836,813.70 = 742,425,171.10 : x
  2. Step 2: Convert to fraction form
    772,557,875.80/1,158,836,813.70 = 742,425,171.10/x
  3. Step 3: Cross multiply
    772,557,875.80x = 1,158,836,813.70 × 742,425,171.10
  4. Step 4: Simplify right side
    772,557,875.80x = 860,349,619,688,201,344
  5. Step 5: Solve for x
    x = 860,349,619,688,201,344/772,557,875.80
  6. Step 6: Final answer
    x = 1,113,637,756.65

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Double scale
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1.5x scale

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.