Finding the Fourth Proportional to 1,249,870,003.68, 1,724,817,489.84 and 692,938,714.08
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Solution
The fourth proportional to 1,249,870,003.68, 1,724,817,489.84 and 692,938,714.08 is: 956,253,698.32
Step by Step Solution
- Step 1: Write the proportion equation
1,249,870,003.68 : 1,724,817,489.84 = 692,938,714.08 : x - Step 2: Convert to fraction form
1,249,870,003.68/1,724,817,489.84 = 692,938,714.08/x - Step 3: Cross multiply
1,249,870,003.68x = 1,724,817,489.84 × 692,938,714.08 - Step 4: Simplify right side
1,249,870,003.68x = 1,195,192,813,432,423,168 - Step 5: Solve for x
x = 1,195,192,813,432,423,168/1,249,870,003.68 - Step 6: Final answer
x = 956,253,698.32
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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.