Home / 1,125,724,445.87-1,688,578,166.57-338,774,710.77

Finding the Fourth Proportional to 1,125,724,445.87, 1,688,578,166.57 and 338,774,710.77

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Solution

The fourth proportional to 1,125,724,445.87, 1,688,578,166.57 and 338,774,710.77 is: 508,159,507.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,724,445.87 : 1,688,578,166.57 = 338,774,710.77 : x
  2. Step 2: Convert to fraction form
    1,125,724,445.87/1,688,578,166.57 = 338,774,710.77/x
  3. Step 3: Cross multiply
    1,125,724,445.87x = 1,688,578,166.57 × 338,774,710.77
  4. Step 4: Simplify right side
    1,125,724,445.87x = 572,047,579,990,594,752
  5. Step 5: Solve for x
    x = 572,047,579,990,594,752/1,125,724,445.87
  6. Step 6: Final answer
    x = 508,159,507.50

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Double scale
Find fourth proportional to 1,125,724,446.87, 1,688,578,168.06 and 338,774,711.77
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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.