Home / 922,127,945.10-1,272,532,759.56-498,742,079.10

Finding the Fourth Proportional to 922,127,945.10, 1,272,532,759.56 and 498,742,079.10

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Solution

The fourth proportional to 922,127,945.10, 1,272,532,759.56 and 498,742,079.10 is: 688,262,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,127,945.10 : 1,272,532,759.56 = 498,742,079.10 : x
  2. Step 2: Convert to fraction form
    922,127,945.10/1,272,532,759.56 = 498,742,079.10/x
  3. Step 3: Cross multiply
    922,127,945.10x = 1,272,532,759.56 × 498,742,079.10
  4. Step 4: Simplify right side
    922,127,945.10x = 634,665,634,225,814,784
  5. Step 5: Solve for x
    x = 634,665,634,225,814,784/922,127,945.10
  6. Step 6: Final answer
    x = 688,262,011.36

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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.