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Finding the Fourth Proportional to 1,091,870,374.90, 1,637,805,562.35 and 898,000,698.10

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Solution

The fourth proportional to 1,091,870,374.90, 1,637,805,562.35 and 898,000,698.10 is: 1,347,001,047.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,870,374.90 : 1,637,805,562.35 = 898,000,698.10 : x
  2. Step 2: Convert to fraction form
    1,091,870,374.90/1,637,805,562.35 = 898,000,698.10/x
  3. Step 3: Cross multiply
    1,091,870,374.90x = 1,637,805,562.35 × 898,000,698.10
  4. Step 4: Simplify right side
    1,091,870,374.90x = 1,470,750,538,342,363,136
  5. Step 5: Solve for x
    x = 1,470,750,538,342,363,136/1,091,870,374.90
  6. Step 6: Final answer
    x = 1,347,001,047.15

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Double scale
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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.