Finding the Fourth Proportional to 1,281,356,539.96, 1,768,285,943.06 and 752,742,806.08
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Solution
The fourth proportional to 1,281,356,539.96, 1,768,285,943.06 and 752,742,806.08 is: 1,038,793,248.58
Step by Step Solution
- Step 1: Write the proportion equation
1,281,356,539.96 : 1,768,285,943.06 = 752,742,806.08 : x - Step 2: Convert to fraction form
1,281,356,539.96/1,768,285,943.06 = 752,742,806.08/x - Step 3: Cross multiply
1,281,356,539.96x = 1,768,285,943.06 × 752,742,806.08 - Step 4: Simplify right side
1,281,356,539.96x = 1,331,064,522,730,803,456 - Step 5: Solve for x
x = 1,331,064,522,730,803,456/1,281,356,539.96 - Step 6: Final answer
x = 1,038,793,248.58
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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.