Home / 1,561,931,368.92-2,155,459,376.16-857,095,145.52

Finding the Fourth Proportional to 1,561,931,368.92, 2,155,459,376.16 and 857,095,145.52

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Solution

The fourth proportional to 1,561,931,368.92, 2,155,459,376.16 and 857,095,145.52 is: 1,182,788,056.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,931,368.92 : 2,155,459,376.16 = 857,095,145.52 : x
  2. Step 2: Convert to fraction form
    1,561,931,368.92/2,155,459,376.16 = 857,095,145.52/x
  3. Step 3: Cross multiply
    1,561,931,368.92x = 2,155,459,376.16 × 857,095,145.52
  4. Step 4: Simplify right side
    1,561,931,368.92x = 1,847,433,767,672,303,360
  5. Step 5: Solve for x
    x = 1,847,433,767,672,303,360/1,561,931,368.92
  6. Step 6: Final answer
    x = 1,182,788,056.14

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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.