Home / 1,353,837,688.08-1,868,016,237.81-781,610,824.50

Finding the Fourth Proportional to 1,353,837,688.08, 1,868,016,237.81 and 781,610,824.50

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Solution

The fourth proportional to 1,353,837,688.08, 1,868,016,237.81 and 781,610,824.50 is: 1,078,461,417.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,837,688.08 : 1,868,016,237.81 = 781,610,824.50 : x
  2. Step 2: Convert to fraction form
    1,353,837,688.08/1,868,016,237.81 = 781,610,824.50/x
  3. Step 3: Cross multiply
    1,353,837,688.08x = 1,868,016,237.81 × 781,610,824.50
  4. Step 4: Simplify right side
    1,353,837,688.08x = 1,460,061,711,819,096,320
  5. Step 5: Solve for x
    x = 1,460,061,711,819,096,320/1,353,837,688.08
  6. Step 6: Final answer
    x = 1,078,461,417.25

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Double scale
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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.