Home / 772,561,411.80-1,158,842,117.70-742,428,707.10

Finding the Fourth Proportional to 772,561,411.80, 1,158,842,117.70 and 742,428,707.10

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Solution

The fourth proportional to 772,561,411.80, 1,158,842,117.70 and 742,428,707.10 is: 1,113,643,060.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,561,411.80 : 1,158,842,117.70 = 742,428,707.10 : x
  2. Step 2: Convert to fraction form
    772,561,411.80/1,158,842,117.70 = 742,428,707.10/x
  3. Step 3: Cross multiply
    772,561,411.80x = 1,158,842,117.70 × 742,428,707.10
  4. Step 4: Simplify right side
    772,561,411.80x = 860,357,655,177,037,056
  5. Step 5: Solve for x
    x = 860,357,655,177,037,056/772,561,411.80
  6. Step 6: Final answer
    x = 1,113,643,060.65

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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.