Finding the Fourth Proportional to 1,125,725,806.05, 1,688,580,206.94 and 338,776,070.96
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Solution
The fourth proportional to 1,125,725,806.05, 1,688,580,206.94 and 338,776,070.96 is: 508,161,547.80
Step by Step Solution
- Step 1: Write the proportion equation
1,125,725,806.05 : 1,688,580,206.94 = 338,776,070.96 : x - Step 2: Convert to fraction form
1,125,725,806.05/1,688,580,206.94 = 338,776,070.96/x - Step 3: Cross multiply
1,125,725,806.05x = 1,688,580,206.94 × 338,776,070.96 - Step 4: Simplify right side
1,125,725,806.05x = 572,050,567,999,513,984 - Step 5: Solve for x
x = 572,050,567,999,513,984/1,125,725,806.05 - Step 6: Final answer
x = 508,161,547.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.